CN102495024B - Salinity concentration measuring device and salinity concentration measuring method - Google Patents
Salinity concentration measuring device and salinity concentration measuring method Download PDFInfo
- Publication number
- CN102495024B CN102495024B CN201110215273.4A CN201110215273A CN102495024B CN 102495024 B CN102495024 B CN 102495024B CN 201110215273 A CN201110215273 A CN 201110215273A CN 102495024 B CN102495024 B CN 102495024B
- Authority
- CN
- China
- Prior art keywords
- dilution
- mentioned
- salt concentration
- stoste
- dilution ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention provides a salinity concentration measuring device and a salinity concentration measuring method by which the dilution rate can be measured simply, automatically and accurately so as to measure the salinity concentration accurately. The salinity concentration measuring device comprises a soluble solid amount measuring unit for measuring the soluble solid amounts of a stoste and a diluent; a dilution rate computing unit computing the dilution rate according to the soluble solid amounts of the stoste and the diluent; a conductivity measuring unit for measuring the conductivity of the dilution; and a salinity concentration measuring unit for computing the salinity concentration of the stoste according to the dilution rate and the conductivity.
Description
Technical field
The present invention relates to the device for measuring the salt concentration in sample and method, particularly can easily diluted sample and measure the device and method of salt concentration accurately.
Background technology
As the salinometer for measuring the salt concentration in sample, the known linear relationship according to salt concentration and conductivity is converted into the measured value of the conductivity of sample the salinometer (patent documentation 1) of the electrical conductivity of salt concentration.
But, in the sample that salt concentration is high, because salt concentration and conductivity are not linear relationships, so the salinometer of electrical conductivity can not be used to measure the salinity of high concentration.In addition, when comprising the ion beyond a lot of sodion in the sample, because these ionic conductivities increase, under comprising a lot of amino acid or the organic situation of wet goods in the sample, because the attachment conductivity of organism to electrode reduces, correctly salt concentration cannot be asked.
Therefore, at the sample of high concentration and when comprising various ion or organic sample, carry out following method: with the stoste of predetermined dilution ratio diluted sample, then measure the salt concentration of dilution, dilution ratio is multiplied by obtain the salt concentration of stoste to this salt concentration measured value.But, even if by the ion beyond dilution attenuating sodion or organic impact, if the precision of dilution ratio is low, then there is the problem correctly cannot obtaining salt concentration.In addition, in order to improve the precision of dilution ratio, high-precision precision balance and high performance dispenser must be used, there is the problem needing expertly to carry out these operations.
Patent documentation 1: Japanese Unexamined Patent Publication 2006-349450 publication
Summary of the invention
The present invention makes to propose to solve the problem, and its object is to provide a kind of salt concentration determinator and salt concentration assay method, it simply and automatically can obtain dilution ratio accurately, can measure salt concentration accurately thus.
To achieve these goals, salt concentration determinator of the present invention has: the soluble solids quantitative determination unit measuring the stoste of sample and the soluble solids amount of dilution; The dilution ratio computing unit of the dilution ratio of dilution is calculated according to the soluble solids gauge of stoste and dilution; Measure the conductance measurement unit of the conductivity of dilution; With the salt concentration computing unit of the salt concentration according to dilution ratio and Conductivity Calculation stoste.
In addition, salt concentration assay method of the present invention comprises: the step measuring the soluble solids amount of the stoste of sample; Dilution stoste makes the step of dilution; Measure the step of the soluble solids amount of dilution; The step of the dilution ratio of dilution is calculated according to the soluble solids gauge of stoste and dilution; Measure the step of the conductivity of dilution; With the step of the salt concentration according to dilution ratio and Conductivity Calculation stoste.
According to the present invention, can provide and simply and automatically can obtain dilution ratio accurately, salt concentration determinator and the salt concentration assay method of salt concentration can be measured thus accurately.
Accompanying drawing explanation
Fig. 1 is the Sketch figure of the salt concentration determinator of embodiments of the present invention.
Fig. 2 represents the relation of Brix measured value and dilute concentration about various sample.
Fig. 3 represents the relation of dilution ratio and salt concentration measured value about various sample.
Fig. 4 represents the salt concentration scaled value of stoste and the relation of dilution ratio of trying to achieve according to the salt concentration measured value of various dilution ratio and dilution about various sample.
Fig. 5 is the process flow diagram of the salt concentration assay method in embodiments of the present invention.
Fig. 6 represents stoste salt concentration scaled value when calculating dilution ratio according to the ratio of the Brix measured value of stoste and dilution.
Fig. 7 represents the error of dilution ratio when calculating dilution ratio according to the ratio of Brix value.
Symbol description
10 salt concentration determinators
12 shells
14 openings
16 sample putting surfaces
18 prisms
20 light sources
22 optical detection parts
24 soluble solids amount calculating parts
26 first electrodes
28 second electrodes
34 Conductivity Calculation portions
36 interfaces
38 treatment circuits
40 calculation control unit
42 data store
44 operating portions
46 display parts
48 dilution ratio calculating parts
50 dilution ratio detection units
52 salt concentration calculating parts
The stoste of S sample
The dilution of S ' sample
Embodiment
With reference to Fig. 1, the salt concentration determinator 10 of embodiments of the present invention, its shell 12 arranges opening 14, arranges and be used for the stoste S of placing sample and the sample putting surface 16 of dilution S ' in this opening 14.
Salt concentration determinator 10, comprises the unit measuring the stoste S of sample and the Brix value (%) of dilution S ', i.e. prism 18, light source 20, optical detection part 22 and soluble solids amount calculating part 24.As everyone knows, Brix value (%) represents the concentration of the soluble solids in solution.
Prism 18 forms sample putting surface 16 at least partially, to be formed and the stoste S of sample or the boundary surface of dilution S '.Light source 20 makes light incide the stoste S of sample or the boundary surface of dilution S ' and prism 18 from prism 18 side.Optical detection part 22 receive from light source 20, the light that reflects with the boundary surface of prism 18 at the stoste S of sample or dilution S '.In optical detection part 22, such as, one dimensional image sensor or two-dimensional image sensor etc. is used to have the photoelectric sensor of multiple photo detector.These prisms 18, light source 20, photodetector 22 also can be identical with prism, light source and the photodetector used in general refractometer.
Soluble solids amount calculating part 24, according to the output of photodetector 22, calculates the Brix value of stoste S and dilution S '.Here, the value that the weight (g) " dilution ratio " being defined as Sample dilution obtains divided by the weight (g) of the sample stoste comprised in this dilution.
Salt concentration determinator 10 also comprises the unit of the conductivity measuring dilution S ', i.e. the first electrode 26 and the second electrode 28 and Conductivity Calculation portion 34.
First electrode 26 and the second electrode 28 are mutually to leave and the mode contacted with the dilution S ' of sample is arranged on sample putting surface 16.By power supply unit (not shown), between the first electrode 26 and the second electrode 28, apply voltage.Electric current between the first electrode 26 and the second electrode 28 and voltage is measured by current/voltage detecting unit (not shown).Conductivity Calculation portion 34, according to the electric current detected and voltage, calculates the conductivity of dilution S '.
Salt concentration determinator 10 comprises the treatment circuit 38 be connected with light source 20, optical detection part 22, first electrode 26 and the second electrode 28 via interface 36.Treatment circuit 38 comprises calculation control unit 40, data store 42, operating portion 44 and display part 46.
Calculation control unit 40, except except the soluble solids amount calculating part 24 described and Conductivity Calculation portion 34, also comprises dilution ratio calculating part 48, dilution ratio detection unit 50 and salt concentration calculating part 52 above.Dilution ratio calculating part 48, according to following investigation, calculates dilution ratio according to Brix value.
Table 1 represents the refractive index of the dilution measuring stoste and various dilute concentration about various sample, these refractive indexes is converted into the result of Brix value.Here, " dilute concentration (%) " is defined as the weight (g) of the sample stoste comprised in 100g dilution, dilute concentration (%)=100/ dilution ratio.While in order to make dilute concentration become 5%, 10%, 15%, 20%, 25%, 50%, 75% and strictly gravimetry, add pure water to make Sample dilution to sample stoste.
Table 1
| Dilute concentration (%) | 5 | 10 | 15 | 20 | 25 | 50 | 70 | 100 |
| Dense mouth soy sauce | 1.88 | 3.70 | 5.60 | 7.40 | 9.20 | 18.10 | 26.64 | 35.10 |
| Thin soy sauce | 1.80 | 3.60 | 5.40 | 7.20 | 9.00 | 17.70 | 26.14 | 34.38 |
| Low-salt soy sauce | 1.60 | 3.12 | 4.70 | 6.30 | 7.88 | 15.60 | 23.00 | 30.30 |
| Soy sauce | 2.20 | 4.40 | 6.50 | 8.70 | 10.80 | 21.32 | 31.50 | 41.44 |
| Bechamel | 2.10 | 4.30 | 6.40 | 8.56 | 10.68 | 21.10 | 31.30 | 41.38 |
| Sweet dew soy sauce | 2.30 | 4.50 | 6.70 | 8.94 | 11.18 | 21.94 | 32.40 | 42.52 |
| Sudden and violent pickled cabbage | 0.20 | 0.44 | 0.70 | 0.90 | 1.20 | 2.38 | 3.60 | 4.80 |
| Vinegar salts down Chinese onion | 1.50 | 3.14 | 4.72 | 6.32 | 7.90 | 15.80 | 23.70 | 31.60 |
| Soy sauce salting cucumber | 0.50 | 1.00 | 1.52 | 2.10 | 2.60 | 5.20 | 7.80 | 10.42 |
| Catsup | 1.54 | 3.10 | 4.70 | 6.28 | 7.92 | 15.98 | 24.10 | 32.40 |
| Flour halogen | 0.86 | 1.74 | 2.60 | 3.46 | 4.32 | 8.70 | 12.90 | 17.20 |
| Dense baste | 1.68 | 3.50 | 5.30 | 7.14 | 8.92 | 18.14 | 27.74 | 37.58 |
| In dense baste | 1.50 | 3.10 | 4.70 | 6.36 | 8.02 | 16.12 | 24.30 | 32.56 |
| Canton style roast pork condiments juice | 2.10 | 4.56 | 6.66 | 9.00 | 11.22 | 22.04 | 33.14 | 44.06 |
| Sauce Boiled fish | 1.92 | 4.06 | 6.14 | 8.38 | 10.46 | 21.16 | 32.14 | 42.98 |
When with reference to using Brix measured value as transverse axis, dilute concentration is made Fig. 2 of table 1 pictorialization as the longitudinal axis time, known Brix measured value is different with sample, but the Brix measured value of each sample and dilute concentration substantially linear.In addition, when being 0% from dilute concentration, Brix measured value is also 0, can suppose Brix measured value and the proportional relation of dilute concentration.According to this supposition, by making the Brix measured value of Brix measured value divided by dilution of stoste, independently dilution ratio can be calculated with sample.
Referring again to Fig. 1, dilution ratio detection unit 50 judges dilution ratio whether in the scope that applicable salt concentration measures.Be applicable to the scope of the dilution ratio that salt concentration measures, decide according to following investigation.
Table 2 represents the conductivity measuring the dilution of stostes and the various dilution ratios identical with table 1 about identical with table 1 various samples, according to the result of the salt concentration of each stoste of these Conductivity Calculation and dilution.Same with table 1, in order to make dilute concentration become 5%, 10%, 15%, 20%, 25%, 50%, 75% and strictly gravimetry, while to sample stoste add pure water to make Sample dilution.
Table 2
| Dilute concentration (%) | 5 | 10 | 15 | 20 | 25 | 50 | 70 | 100 |
| Dilution ratio | 20.00 | 10.00 | 6.67 | 5.00 | 4.00 | 2.00 | 1.33 | 1.00 |
| Dense mouth soy sauce | 0.730 | 1.518 | 2.258 | 2.912 | 3.580 | 6.180 | 7.780 | 7.920 |
| Thin soy sauce | 0.820 | 1.694 | 2.490 | 3.200 | 4.000 | 7.040 | 8.800 | 9.120 |
| Low-salt soy sauce | 0.426 | 0.850 | 1.260 | 1.678 | 2.046 | 3.540 | 4.320 | 4.600 |
| Soy sauce | 0.784 | 1.596 | 2.326 | 3.000 | 3.700 | 6.140 | 7.200 | 6.620 |
| Bechamel | 0.740 | 1.490 | 2.216 | 2.838 | 3.500 | 5.740 | 6.640 | 5.980 |
| Sweet dew soy sauce | 0.718 | 1.420 | 2.108 | 2.710 | 3.240 | 5.400 | 6.120 | 5.560 |
| Sudden and violent pickled cabbage | 0.108 | 0.216 | 0.340 | 0.438 | 0.540 | 1.104 | 1.728 | 2.206 |
| Vinegar salts down Chinese onion | 0.100 | 0.180 | 0.268 | 0.346 | 0.416 | 0.710 | 0.860 | 0.866 |
| Soy sauce salting cucumber | 0.120 | 0.250 | 0.370 | 0.480 | 0.590 | 1.190 | 1.764 | 2.210 |
| Catsup | 0.140 | 0.280 | 0.400 | 0.500 | 0.614 | 1.054 | 1.286 | 1.316 |
| Flour halogen | 0.180 | 0.360 | 0.522 | 0.690 | 0.870 | 1.706 | 2.358 | 2.870 |
| Dense baste | 0.242 | 0.470 | 0.710 | 0.910 | 1.090 | 1.846 | 2.134 | 2.044 |
| In dense baste | 0.230 | 0.440 | 0.644 | 0.856 | 1.032 | 1.832 | 2.262 | 2.376 |
| Canton style roast pork condiments juice | 0.340 | 0.650 | 0.936 | 1.176 | 1.428 | 2.142 | 2.134 | 1.616 |
| Sauce Boiled fish | 0.338 | 0.660 | 0.960 | 1.240 | 1.514 | 2.396 | 2.462 | 2.132 |
When with reference to using dilution ratio as transverse axis, salt concentration measured value is made Fig. 3 of table 2 pictorialization as the longitudinal axis time, represent the curve of the relation of dilution ratio and salt concentration measured value, in a part of sample (such as Canton style roast pork condiments juice, sauce Boiled fish), dilution ratio slope variation near two times is large.In addition, the larger salt concentration of dilution ratio should be less, but in a part of sample (such as soy sauce, bechamel, sweet dew soy sauce), dilution ratio is that the salt concentration measured value of the dilution of 1.33 times becomes higher than the salt concentration measured value of stoste.
Fig. 4 represents using dilution ratio as transverse axis, is multiplied by the chart of the salt concentration scaled value of the stoste that dilution ratio is obtained by the salt concentration measured value of his-and-hers watches 2.The salt concentration scaled value of the stoste that the dilution of known use dilution ratio less than 5 times is obtained is significantly little.This considers it is the impact of the composition beyond the salinity that comprises in the sample.
On the other hand, the ratio that the salt concentration scaled value of the stoste using the dilution of dilution ratio 15 ~ 20 times to obtain has uses dilution ratio to be that the salt concentration scaled value of the stoste that the dilution of 10 times is tried to achieve is little.This considers it is because excess dilution correctly cannot measure the cause of conductivity.
Therefore, for measuring the proper range of the dilution ratio of salt concentration accurately, it is desirable to 5 ~ 15 times.In the diagram, because at dilution ratio be the scope of 8 ~ 12 times, the salt concentration scaled value of stoste is substantially certain, so the proper range of dilution ratio more preferably 8 ~ 12 times.
Referring again to Fig. 1, salt concentration calculating part 52, according to the salt concentration of the Conductivity Calculation dilution S ' of dilution S ', calculates the salt concentration of stoste S according to the salt concentration of dilution S ' and dilution ratio.
Data store 42, prestores various calculating formula, and the data in temporary transient storing measurement.More specifically, data store 42 prestore the calculating formula of critical angle, refractive index calculating formula, from refractive index to the calculating formula of the conversion formula of Brix value, the calculating formula of dilution ratio, the calculating formula of conductivity and salt concentration.
From refractive index to the conversion formula of Brix value, such as, can generate according to the relational expression of the refractive index determined by ICUMSA (the international granulated sugar analytic approach standardization council) and Brix value.
The calculating formula of dilution ratio, as mentioned above, it is desirable to the Brix value of the Brix value/dilution of stoste.Or the calculating formula of dilution ratio also can be the formula of the relational expression based on the Brix value obtained according to the regretional analysis of measurement result carried out in advance and dilute concentration.This relational expression, it is desirable to linear function formula (y=ax+b), but according to circumstances in order to consider that nonlinear terms can also be quadratic function formula (y=ax
2+ bx+c) etc.
Operating portion 44, when measuring the Brix value of stoste S and dilution S ', and by user operation when the conductivity of mensuration dilution S ' etc., sends signal to calculation control unit 40.
Display part 46 shows the salt concentration of the stoste S calculated, when dilution ratio is not in proper range, and display error message.
Salt concentration assay method in embodiments of the present invention is described with reference to Fig. 5.
In step S101, measure the Brix value of the soluble solids amount representing stoste S.The stoste S of sample is covered extend on sample putting surface 16 like that with the boundary surface of prism 18.When user operation operating portion 44, send signal from calculation control unit 40 to light source 20, light source 20 is lighted.Light from light source 20 incides the boundary surface of stoste S and prism 18, and (a), according to the refractive index of stoste S, a part for light reflects in boundary surface the arrow of Fig. 1, and reflected light is received (the arrow b of Fig. 1) by optical detection part 22.
Soluble solids amount calculating part 24 is used in the calculating formula of the critical angle prestored in data store 42 and the calculating formula of refractive index, according to the output of optical detection part 22, obtain the critical angle from prism 18 to stoste S, according to the refractive index of critical angle and known prism 18, obtain the refractive index of stoste S based on Snell law.Then, be used in prestore in data store 42 from refractive index to the conversion formula of Brix value, the refractive index of stoste S is converted into Brix value.Refractive index and the Brix value of stoste S is stored in data store 42.
In step S103, generate the dilution S ' of sample.In sample putting surface 16, pure water can be added to make dilution S ' to the stoste S used in step S101.Or, also can dilute in other container with the stoste S-phase that uses in step S101 with liquid to make dilution S '.No matter can not use special instrument in any situation, the weight of pure water not measuring stoste S in addition and add in stoste S, make dilution S ' simply.
In step S105, measure the Brix value of dilution S '.Identical with step S101, when user operation operating portion 44, light source 20 is lighted, and optical detection part 22 is received in the light of the boundary surface reflection of dilution S ' and prism 18.Soluble solids amount calculating part 24 is used in the calculating formula of the critical angle prestored in data store 42 and the calculating formula of refractive index, according to the output of optical detection part 22, obtain the critical angle from prism 18 to dilution S ', obtain the refractive index of dilution S ' according to the refractive index of critical angle and prism 18.Then, and step S101 is same, be used in prestore in data store 42 from refractive index to the conversion formula of Brix value, the refractive index of dilution S ' is converted into Brix value.The refractive index of dilution S ' and Brix value are stored in data store 42.
In step S107, calculate the dilution ratio from stoste S to dilution S '.Preferably when measuring the Brix value of dilution S ' in step S105, dilution ratio calculating part 48 automatically calculates dilution ratio.Dilution ratio, is used in the calculating formula of the dilution ratio prestored in data store 42, and the Brix value according to stoste S and dilution S ' calculates.Brix value preferably by stoste S calculates dilution ratio divided by the Brix value of dilution S '.
In step S109, judge dilution ratio whether in the proper range of regulation.As mentioned above, for using the salt concentration of the stoste of the diluent determining sample of sample, the proper range of dilution ratio it is desirable to 5 ~ 15 times, more preferably 8 ~ 12 times.
When judging that dilution ratio is not in proper range by dilution ratio detection unit 50, in step S111, showing error message by display part 46, returning step S103, carry out the adjustment of dilution ratio.
When dilution ratio is less than predetermined proper range, calculation control unit 40 makes display part 46 show the too high error message (such as " HHH " or " High " etc.) of expression dilute concentration, can notify that user needs in dilution S ', to add pure water again to lower dilute concentration thus.
When dilution ratio exceedes predetermined scope, calculation control unit 40 makes display part 46 show the too low error message (such as " LLL " or " Low " etc.) of expression dilute concentration, can notify that user needs in dilution S ', to add stoste to increase dilute concentration thus.
On the other hand, when judging that dilution ratio is in proper range by dilution ratio detection unit 50, show dilution ratio by display part 46, and dilution ratio is stored in data store 42, proceed to step S113.
In step S113, measure the conductivity of dilution S '.The mensuration of conductivity is undertaken indicating by operating portion 44 according to user and starts.But, when being judged to be that in step S109 dilution ratio is not in proper range, even if user carries out indicating the mensuration also not starting conductivity.Thus, can prevent due to the high sample damage electrode of salt concentration.
After judgement dilution ratio is in proper range, when user indicates mensuration conductivity, between the first electrode 26 and the second electrode 28, applies alternating voltage, measure the electric current between the first electrode 26 and the second electrode 28 and voltage.Conductivity Calculation portion 34 is used in the calculating formula of the conductivity prestored in data store 42, calculates the conductivity of dilution S ' according to the electric current measured and voltage.The conductivity of the dilution S ' calculated is stored in data store 42.
In step S115, calculate the salt concentration of dilution S '.Salt concentration calculating part 52 is used in the calculating formula of the salt concentration prestored in data store 42, according to the salt concentration of the Conductivity Calculation dilution S ' of the dilution S ' calculated in step S113.The salt concentration of the dilution S ' calculated is stored in data store 42.
In step S117, calculate the salt concentration of stoste S.Salt concentration calculating part 52 recalls the salt concentration measured value of dilution ratio and dilution S ' from data store 42, and they being multiplied calculates the salt concentration of stoste S.The salt concentration of the stoste S calculated, shown by display part 46, and be stored in data store 42.
Store in data store 42 in each step, the refractive index of stoste S and Brix value, the refractive index of dilution S ' and Brix value, dilution ratio, the conductivity of dilution S ' and salt concentration measured value, stoste S salt concentration scaled value, also can be transferred to other devices via interface 36.
(embodiment)
Fig. 6 represents the ratio of the Brix measured value according to stoste and dilution about various sample, the salt concentration scaled value of stoste when calculating dilution ratio.
More specifically, by the Brix measured value of the stoste in table 1 divided by the Brix measured value of the dilution of the dilute concentration 10% in this table 1, dilution ratio is calculated.Then, measure the conductivity of the dilution of above-mentioned dilute concentration 10%, calculate the salt concentration measured value of this dilution, the salt concentration that dilution ratio is scaled stoste is multiplied by this salt concentration measured value.
The solid line of Fig. 6 represents stoste salt concentration scaled value when calculating dilution ratio as stoste and the ratio of the Brix value of dilution, dotted line represents by existing method, namely supposes that dilute concentration is correctly that 10% dilution ratio is set to 10 times of stoste salt concentration scaled values obtained.As shown in the figure, even if when the ratio as Brix value calculates dilution ratio, also can obtain with strictly gravimetry number percent to the substantially equal salt concentration of the existing method making dilution.
Fig. 7 is the dilution of the dilution ratio 10 times about strictly gravimetry number percent making, represents the error of the dilution ratio obtained in the above-described first embodiment.The dilution ratio calculated in the embodiment 1 of dilution ratio as the ratio of the Brix value of stoste and dilution is 9.41 ~ 10.91 times.
On the other hand, the dilution ratio of the reality when being 10 times with the dilution of the precision determination weight of ± 0.2g is for 8.17 ~ 12.75.The dilution ratio of the reality when being 10 times with the dilution of the precision determination weight of ± 0.1g is for 9.00 ~ 11.22.
As shown in the figure, knownly to calculate in the first embodiment of dilution ratio at the ratio as Brix value, ± the gravimetry of 0.1g precision more high-precision dilution ratio when making dilution can be obtained than passing through.Therefore, knownly calculate dilution ratio by the ratio as Brix value, pass through with use ± dilution of the gravimetry of 0.1g precision making compared with, precision can measure the salt concentration of sample stoste higher.
According to above-mentioned salt concentration determinator and salt concentration assay method, because the Brix value according to the soluble solids amount representing stoste and dilution obtains dilution ratio, so do not need the dilution operation based on strict gravimetry, the mensuration of salt concentration easily can be carried out.
Because can judge that the dilution ratio of dilution is whether in preset range, so can easily dilution ratio be adjusted in the scope that applicable salt concentration measures, thus can with higher precision determination salt concentration.
By using the ratio of the Brix measured value of stoste and dilution as dilution ratio, similarly can calculate dilution ratio for whole sample, thus can make determinator and assay method simpler.
Be explained above salt concentration determinator and the salt concentration assay method of embodiments of the present invention, but the present invention is not limited thereto.The structure in each portion of such as salt concentration determinator can be replaced into the arbitrary structure with said function.
Claims (8)
1. a salt concentration determinator, is characterized in that, has:
Soluble solids quantitative determination unit, it measures the stoste of sample and the soluble solids amount of dilution;
Dilution ratio computing unit, it, according to the soluble solids amount of above-mentioned stoste and above-mentioned dilution, calculates the dilution ratio of above-mentioned dilution;
Conductance measurement unit, it measures the conductivity of above-mentioned dilution; With
Salt concentration computing unit, it is according to the salt concentration of above-mentioned dilution ratio and the above-mentioned stoste of above-mentioned Conductivity Calculation.
2. salt concentration determinator according to claim 1, is characterized in that,
Above-mentioned dilution ratio computing unit divided by the soluble solids amount of above-mentioned dilution, calculates above-mentioned dilution ratio by the soluble solids amount of above-mentioned stoste.
3. salt concentration determinator according to claim 1 and 2, is characterized in that,
Above-mentioned salt concentration computing unit, is scaled above-mentioned conductivity the salt concentration of above-mentioned dilution, makes the salt concentration of above-mentioned dilution be multiplied by above-mentioned dilution ratio to calculate the salt concentration of above-mentioned stoste.
4. salt concentration determinator according to claim 1, is characterized in that, also has dilution ratio identifying unit, and it judges above-mentioned dilution ratio whether in predetermined scope, and above-mentioned predetermined scope is 5 ~ 15 times.
5. a salt concentration assay method, is characterized in that, comprises:
Measure the step of the soluble solids amount of the stoste of sample;
Dilute the step that above-mentioned stoste makes dilution;
Measure the step of the soluble solids amount of above-mentioned dilution;
According to the soluble solids amount of above-mentioned stoste and above-mentioned dilution, calculate the step of the dilution ratio of above-mentioned dilution;
Measure the step of the conductivity of above-mentioned dilution; With
According to above-mentioned dilution ratio and above-mentioned conductivity, calculate the step of the salt concentration of above-mentioned stoste.
6. salt concentration assay method according to claim 5, is characterized in that,
Computationally state in the step of dilution ratio, by the soluble solids amount of above-mentioned stoste divided by the soluble solids amount of above-mentioned dilution, calculate above-mentioned dilution ratio.
7. the salt concentration assay method according to any one in claim 5 or 6, is characterized in that,
The step calculating above-mentioned salt concentration comprises:
Above-mentioned conductivity is scaled the step of the salt concentration of above-mentioned dilution; With
Make the salt concentration of above-mentioned dilution be multiplied by above-mentioned dilution ratio, calculate the step of the salt concentration of above-mentioned stoste.
8. salt concentration assay method according to claim 5, is characterized in that, also have and judge the step of above-mentioned dilution ratio whether in predetermined scope, above-mentioned predetermined scope is 5 ~ 15 times.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010166923A JP5044774B2 (en) | 2010-07-26 | 2010-07-26 | Salinity concentration measuring apparatus and salinity concentration measuring method |
| JP2010-166923 | 2010-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102495024A CN102495024A (en) | 2012-06-13 |
| CN102495024B true CN102495024B (en) | 2015-03-11 |
Family
ID=45780003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110215273.4A Active CN102495024B (en) | 2010-07-26 | 2011-07-25 | Salinity concentration measuring device and salinity concentration measuring method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5044774B2 (en) |
| CN (1) | CN102495024B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012103010A1 (en) | 2012-04-05 | 2013-10-10 | Fresenius Medical Care Deutschland Gmbh | Method and device for determining the composition of medical fluids in terms of their content of electrolytes and non-electrolytes |
| CN103630514B (en) * | 2013-11-05 | 2016-09-07 | 杭州陆恒生物科技有限公司 | A kind of Multifunctional digital display refractometer |
| JP6224151B2 (en) * | 2016-03-30 | 2017-11-01 | 三井造船環境エンジニアリング株式会社 | Solution analysis system |
| WO2017169444A1 (en) * | 2016-03-30 | 2017-10-05 | 三井造船環境エンジニアリング株式会社 | Solution analysis system |
| CN113466176B (en) * | 2021-06-28 | 2022-10-21 | 华南师范大学 | Method for detecting metal ions in aqueous solution based on refractive index change rate |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU647593A1 (en) * | 1975-08-11 | 1979-02-15 | Всесоюзный научно-исследовательский и проектный институт галургии | Method of automatic determining of potassium content in salts |
| GB2062223A (en) * | 1979-10-30 | 1981-05-20 | Hamill B J | Measurement of solute concentration using dilution |
| JPH07167756A (en) * | 1993-12-14 | 1995-07-04 | Mitsubishi Heavy Ind Ltd | Liquid automatic dilution device |
| JPH11258191A (en) * | 1998-03-09 | 1999-09-24 | Japan Organo Co Ltd | Method and apparatus for measurement of concentration of carbonic acid |
| JP2001201476A (en) * | 2000-01-20 | 2001-07-27 | Sumitomo Metal Ind Ltd | Acid densitometer and method for measuring acid concentration |
| TW200408442A (en) * | 2002-08-23 | 2004-06-01 | Sharp Kk | Automatic metal solution dilutor |
| JP2006349450A (en) * | 2005-06-15 | 2006-12-28 | Atago:Kk | Concentration measuring device |
| CN101203763A (en) * | 2005-06-24 | 2008-06-18 | 爱科来株式会社 | Analysis module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212748A (en) * | 1983-05-19 | 1984-12-01 | Japan Steel Works Ltd:The | Measuring method of high-concentration salinity in crude oil |
| JP2004150923A (en) * | 2002-10-30 | 2004-05-27 | Atago:Kk | Refractometer |
-
2010
- 2010-07-26 JP JP2010166923A patent/JP5044774B2/en active Active
-
2011
- 2011-07-25 CN CN201110215273.4A patent/CN102495024B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU647593A1 (en) * | 1975-08-11 | 1979-02-15 | Всесоюзный научно-исследовательский и проектный институт галургии | Method of automatic determining of potassium content in salts |
| GB2062223A (en) * | 1979-10-30 | 1981-05-20 | Hamill B J | Measurement of solute concentration using dilution |
| JPH07167756A (en) * | 1993-12-14 | 1995-07-04 | Mitsubishi Heavy Ind Ltd | Liquid automatic dilution device |
| JPH11258191A (en) * | 1998-03-09 | 1999-09-24 | Japan Organo Co Ltd | Method and apparatus for measurement of concentration of carbonic acid |
| JP2001201476A (en) * | 2000-01-20 | 2001-07-27 | Sumitomo Metal Ind Ltd | Acid densitometer and method for measuring acid concentration |
| TW200408442A (en) * | 2002-08-23 | 2004-06-01 | Sharp Kk | Automatic metal solution dilutor |
| JP2006349450A (en) * | 2005-06-15 | 2006-12-28 | Atago:Kk | Concentration measuring device |
| CN101203763A (en) * | 2005-06-24 | 2008-06-18 | 爱科来株式会社 | Analysis module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5044774B2 (en) | 2012-10-10 |
| JP2012026912A (en) | 2012-02-09 |
| CN102495024A (en) | 2012-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102495024B (en) | Salinity concentration measuring device and salinity concentration measuring method | |
| KR100786983B1 (en) | Biosensor apparatus and method with sample type and volume detection | |
| CN101389269B (en) | Body composition monitor capable of accurately measuring whole-body composition and achieving facilitated manipulation | |
| JPS62265563A (en) | Device and method of measuring hematocrit | |
| IL126488A (en) | Body fat meter and weighing instrument with body fat meter | |
| WO2008040990A3 (en) | Methods for determining an analyte concentration using signal processing algorithms | |
| CN107209174B (en) | System and method for determining electrochemical hematocrit by alternating current impedance phase angle detection | |
| JP2017519226A (en) | Hemolysis detection method and system | |
| RU2008133572A (en) | DEVICE FOR MEASURING THE BODY COMPOSITION WITH RECOGNITION OF THE PART OF THE BODY USED IN THE CALCULATION OF THE COMPOSITION OF THE COMPOSITION | |
| CN104603598A (en) | Analysis apparatus | |
| JP7461973B2 (en) | Compensation system and method for thermistor sensing in an analyte biosensor - Patent Application 20070229633 | |
| CN104067113B (en) | The conductivity type contact test system of low conductivity | |
| CN109725024B (en) | Measuring device | |
| Jung et al. | Wrist-wearable bioelectrical impedance analyzer with contact resistance compensation function | |
| TWI481869B (en) | Methods for measuring a hematocrit value and a glucose concentration, and electrochemical measuring device | |
| CN109480840A (en) | Biological indicators measuring device and the method for Biological indicators measurement | |
| WO2002043561A3 (en) | Measuring haematocrit in blood vessels | |
| CN105982672B (en) | Skin detection method and skin detection device | |
| TWI470226B (en) | Methods for compensating a blood glucose concentration | |
| KR100760127B1 (en) | Apparatus for detecting salinity | |
| US9188562B2 (en) | Silver testing apparatus | |
| EP1473359A1 (en) | Non-invasive fast assessment of bacterial load in blood and blood products | |
| TWI652480B (en) | Method and device for measuring blood analytes | |
| CN107810409A (en) | The method for the CREA sensors that adjusting pin suppresses to calcium | |
| JP2019002920A (en) | Measuring device and method for sugar and salt mixed sample |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |