CN110174458A - The detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive - Google Patents
The detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive Download PDFInfo
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- CN110174458A CN110174458A CN201910600553.3A CN201910600553A CN110174458A CN 110174458 A CN110174458 A CN 110174458A CN 201910600553 A CN201910600553 A CN 201910600553A CN 110174458 A CN110174458 A CN 110174458A
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Abstract
The invention discloses the detection methods that lead in a kind of formulated food additive and total arsenic measure simultaneously, it is related to determining heavy metals technical field, its key points of the technical solution are that: include the following steps: that micro-wave digestion is carried out to sample to be obtained sample to be tested solution and produce corresponding blank solution；It produces standard solution and prepares lead and arsenic calibration curve solution with 5% nitric acid and prepare germanium 73,209 inner mark solution of bismuth；Standard solution, inner mark solution, blank solution and sample to be tested sample solution are detected respectively by ICP-MS equipment, quantified using online internal standard method, the content of lead and total arsenic in sample is obtained.The rate of recovery of this method with it is reproducible, detection sensitivity is high, detection limit is able to satisfy the requirement of national standard, and it can satisfy the requirement of lead and total arsenic while measurement in food additives, detection process is simple and the time is short, readily available blank reagent, improvement method sensitivity have the effect of improving testing result reliability.
Description
Technical field
The present invention relates to determining heavy metals technical fields, more specifically, it relates to lead in a kind of formulated food additive
The detection method measured simultaneously with total arsenic.
Background technique
Complex additive is the formula mixture containing two or more food additives.According to July 6 in 2011
National food safety standard " the formulated food additive general rule " definition of day Ministry of Public Health's publication, formulated food additive is to change
Kind food quality is convenient for food processing, by the food additives of two or more single variety, adds or does not add auxiliary
Material, food additives made of being mixed through physical method.Formulated food additive is increasingly people's understanding and payes attention to, more and more
Food enterprise use formulated food additive, including many modernization large and medium-sized enterprise more and more widely.
It is also increasingly strict for its hygienic requirements with the development of industrialization, the scale of formulated food Additive Production,
The especially control of contents of heavy metal elements that contains of formulated food additive, the even more most important thing.Produce formulated food addition
Its product standard of the enterprise of agent have to comply with " GB26687-2011 national food safety standard formulated food additive general rule " (with
Lower abbreviation general rule) requirement.Regulation is multiple in " GB26687-2011 national food safety standard formulated food additive general rule "
Content with lead in food additives and total arsenic is not greater than 2.0mg/kg, and detection method presses GB5009.75 and GB5009.76
It executes, it includes that colorimetric method, graphite furnace atomic absorption spectrometry and atom are glimmering that this two standard, which defines the detection method of lead and arsenic,
Light spectroscopic methodology.These detection method pretreatment process very complicateds and time is long, it is difficult to it is empty to obtain horizontal low and stable reagent
White, method sensitivity is lower, reduces the reliability of testing result.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide in a kind of formulated food additive lead and total
The detection method that arsenic measures simultaneously, detection process is simple and the time is short, readily available blank reagent, improvement method sensitivity,
Have the effect of improving testing result reliability.
To achieve the above object, the present invention provides the following technical scheme that
The detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive, which is characterized in that including following step
Suddenly,
S1, sample treatment: formulated food additive samples that 0.5g makes quantitatively are weighed in counteracting tank, every part of sample is done
It is multiple parallel, and 1mL hydrogen peroxide and 5mL nitric acid is added, subsequent sealed digestion tank is cleared up；After sample cooling after resolution
It is transferred in 50mL scale volumetric flask with ultrapure water, and is settled to 50mL and shakes up, obtain sample to be tested solution；It is complete in the step
Process tracking makees blank control sample, and it is spare that blank solution is made；
S2, standard solution are prepared: (1) hybrid standard uses solution: national standard stock solution GBW is used, with the nitre of 2 volumes
It is [μ of ρ=1.0 g/mL] that it is diluted to lead and the concentration of arsenic by the dilute nitric acid solution that acid and the water of 98 volumes are mixed step by step
Hybrid standard uses solution；
(2) standard curve working solution: taken amount element hybrid standard uses solution, is configured to standard system with dilute nitric acid solution
Column: the concentration gradient of lead and arsenic be 0.0ng/mL, 0.5ng/mL, 1.0ng/mL, 10.0ng/mL, 50.0ng/mL with
100.0ng/mL；
(3) internal standard is 1 μ g/mL using liquid concentration: taking appropriate inner mark solution germanium 73, bismuth 209 and is diluted with dilute nitric acid solution
It is 1 μ g/mL to concentration；
(4) instrument tuning is 1ng/mL using liquid concentration: taking appropriate instrument to tune liquid, is diluted to 1ng/ with dilute nitric acid solution
mL；
S3, adjustment ICP-MS instrument parameter:
1 icp ms reference conditions of table
S4, in order by standard solution, blank solution and sample to be tested solution inject icp ms
In, measurement lead, arsenic and internal standard element signal response, using the concentration of element to be measured as abscissa, element to be measured with it is selected interior
The ratio for marking element response signal value is ordinate, draws standard curve, respectively obtains sample to be tested solution according to standard curve
The concentration of middle lead and arsenic.
Further setting: sealed digestion tank carries out micro-wave digestion by microwave device in the step S1.
Further setting: it is 180 DEG C that sealed digestion tank, which carries out the temperature setting of micro-wave digestion, in the step S1, the time
It is arranged at 15~20 minutes.
Further setting: the temperature and time setting when microwave device carries out micro-wave digestion is as follows:
2 micro-wave digestion referral procedure of table
Further setting: blank solution carries out constant volume, each standard in the step S2 in the step S1 after being made
Solution carries out constant volume after preparing, and the constant volume capacity of the standard solution and blank solution with it is to be measured in the step S1
The constant volume capacity of sample solution is consistent.
Further setting: internal standard recommends the isotope and internal standard element of selection using the element to be measured of liquid in the step S2
Relationship be as follows:
The analysis amount of substance and internal standard that table 3 is recommended
| Element | Mass | Internal standard |
| Arsenic As | 75 | Germanium73Ge |
| Lead Pb | 208 | Bismuth209Bi |
Further setting: the germanium 73 of taken amount, the concentration of bismuth 209 are 10 μ g/mL, and pass through dust technology in the step S2
10 times of solution dilution obtains the internal standard and uses liquid.
Further setting: sample does parallel quantity and is set as two in the step S1.
Further setting: the counteracting tank in the step S1 is set as polytetrafluoroethylene (PTFE) counteracting tank.
By using above-mentioned technical proposal, the present invention compares compared with the prior art, has the advantage that
1, sample to be tested solution and blank solution are obtained by sample treatment, while there are multiple parallel tests, to improve
The reliability of testing result, direct preparing standard solution later, in order successively by standard solution, blank solution and to be tested
Solution is measured by inductive coupling example constitution spectrometry, to obtain the concentration of lead and arsenic in solution to be tested, this method
Step is simply orderly, and detection time is short, and is able to achieve while detecting the content of lead and arsenic, and method measurement sensitivity is high, has and mentions
The effect of high detection result reliability；
2, micro-wave digestion is carried out to sample by using microwave device, improves the rate of recovery of sample, and process is simple, flower
It is time-consuming less, it is cleared up 15~20 minutes with 180 DEG C of temperature, can sufficiently clear up sample, improve the reliability of testing result；
3, the reagent that process uses is few, and equipment is corresponding, and low energy consumption, reduces testing cost, while being conducive to protection ring
Border；
4, internal standard is made using liquid by using germanium 73, bismuth 209, standard curve can be made using internal standard method, be convenient for
The concentration for quickly obtaining lead and arsenic in sample to be tested solution, improves the convenience of detection.
Detailed description of the invention
Fig. 1 is total arsenic element standard curve；
Fig. 2 is lead element standard curve.
Specific embodiment
It is described further referring to figs. 1 to Fig. 2 detection method measured simultaneously to lead in formulated food additive and total arsenic.
The detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive, as depicted in figs. 1 and 2, including such as
Lower step the following steps,
S1, sample treatment: formulated food additive samples that 0.5g makes quantitatively are weighed in counteracting tank, every part of sample is done
Two parallel, and 1mL hydrogen peroxide and 5mL nitric acid is added, and subsequent sealed digestion tank is cleared up；After sample cooling after resolution
It is transferred in 50mL scale volumetric flask with ultrapure water, and constant volume shakes up for 50mL, obtains sample to be tested solution；It is complete in the step
Process tracking makees blank control sample, and it is spare to be made blank solution, and blank solution carries out constant volume after being made, the capacity of constant volume with to
The constant volume capacity of test specimens solution is consistent, is set as 50mL, in order to carry out blank determination.
In this step, counteracting tank using polytetrafluoroethylene (PTFE) counteracting tank to formulated food additive samples carry out using, with
Utilize the excellent chemical stability of polytetrafluoroethylene (PTFE), corrosion resistance, sealing property, high lubrication, non-stickiness, electrical insulation and good
Anti-aging endurance is improved to Specimen eliminating effect.Wherein every part of sample do two it is parallel, show knot in order to be averaged
Fruit can reduce error when test result, have the effect of improving test result reliability.
Further, when sealed digestion tank is cleared up, micro-wave digestion, and the temperature of micro-wave digestion are carried out by microwave device
Degree is set as 180 DEG C, and the time was arranged at 15~20 minutes, sufficiently to clear up to sample, passes through the rate of recovery of micro-wave digestion
Height, resolution is more thorough, and process is simple, spends the time less；
S2, standard solution are prepared:
(1) hybrid standard uses solution: national standard stock solution GBW is used, with the nitric acid of 2 volumes and the water of 98 volumes
The concentration that it is diluted to lead and arsenic by the dilute nitric acid solution being mixed step by step is the standard solution of [μ of ρ=1.0 g/mL]；
(2) standard curve working solution: taken amount element hybrid standard uses solution, is configured to dilute nitric acid solution (2+98)
Standard series: the concentration gradient of lead and arsenic be 0.0ng/mL, 0.5ng/mL, 1.0ng/mL, 10.0ng/mL, 50.0ng/mL with
100.0ng/mL；
(3) internal standard is 1 μ g/mL using liquid concentration: taking appropriate inner mark solution and concentration is germanium 73, the bismuth of 10 μ g/mL
209 and 10 times are diluted with dilute nitric acid solution (2+98), is the internal standard of 1 μ g/mL using liquid to obtain concentration；
(4) instrument tuning is 1ng/mL using liquid concentration: take appropriate instrument to tune liquid, it is dilute with dilute nitric acid solution (2+98)
It releases to 1ng/mL；
Each standard solution in the step carries out constant volume, and in the constant volume capacity of standard solution and step S1 to
The constant volume capacity of test specimens solution is consistent, in order in contrast measure.Wherein internal standard is used to and sample to be tested solution using liquid
Response signal value ratio is formed using internal standard method, in order to carry out the Concentration Testing of lead and total arsenic.
S3, selection icp ms (hereinafter referred to as ICP-MS) are measured, and adjust ICP-MS instrument
Device parameter:
1 icp ms reference conditions of table
The test of lead and arsenic is carried out by using inductively coupled plasma mass spectrometry, test process required time is shorter,
And it is able to achieve while detecting the content of lead and arsenic, the rate of recovery is good, and repeatability is good；
S4, standard solution is injected in icp ms, measures the letter of element and internal standard element to be measured
Number response, using the concentration of element to be measured as abscissa, the ratio of element to be measured and selected internal standard element response signal value is vertical
Coordinate draws standard curve；Blank solution and sample to be tested solution are injected into inductively coupled plasma constitution then according to sequence
In spectrometer, the ratio of the response signal value of distal side to be measured and internal standard element is obtained, is recorded in standard curve, according to standard curve
Respectively obtain the concentration of lead and arsenic in sample to be tested solution.
Lead, total arsenogen cellulose content press the calculating of column mathematical expression in sample:
In formula:
X --- to sounding lead, total arsenogen cellulose content in sample, unit is milligrams per liter (mg/L)；
C1 --- total arsenic, lead element mass concentration are tested in sample solution, unit is micro- gram per liter (μ g/L)；
C0 --- total arsenic, lead element mass concentration are tested in sample blank liquid, unit is micro- gram per liter (μ g/L)；
V --- sample digestive juice constant volume, unit are milliliter (mL)；
F --- sample extension rate；
M --- sample pipettes volume, and unit is milliliter (mL)；
1000 --- conversion coefficient
It is indicated with the arithmetic mean of instantaneous value of the multiple independent measurement result obtained under the conditions of repeatability, and three is retained to result
Effective digital.
S5, measurement detection limit experiment: 12 parts of blank solutions of preparation are continuously injected into icp ms and survey
Determine lead and arsenic 12 times, measure the standard deviation of lead and arsenic in blank solution, using 3 times of measurement standard deviation as measured element
Detection limit, being converted to the detection limit of Element Lead and arsenic in formulated food additive is respectively 0.06 μ g/kg and 0.2 μ g/kg；
S6, rate of recovery experiment:
Instrument listed by S3 optimizes under running parameter, is measured in parallel formulated food additive digestion solution 11 times, calculates
The relative standard deviation of Pb and As element determination result investigates the precision of method, and to carry out mark-on reclaims to sample real
It tests, concentration when sample mark-on reclaims is respectively 5 μ g/L and 15 μ g/L, and Precision Experiment and mark-on measurement result are as follows:
The rate of recovery (n=2) under two spiked levels of 5 μ g/L and 15 μ g/L is 83.1%~105.9%, method RSD
1.1%~3.1%, high sensitivity can satisfy the requirement of lead and total arsenic while measurement in food additives, improve detection knot
The reliability of fruit.
Embodiment two, the difference between this embodiment and the first embodiment lies in, microwave device carry out micro-wave digestion when temperature with
Time setting is different, the setting such as following table in the present embodiment.
2 micro-wave digestion referral procedure of table
120 DEG C were gradually warming up to first with 5 minutes, maintains the temperature later 5 minutes, then rose temperature using 5 minutes
To 160 DEG C, and 10 minutes of temperature of 160 DEG C of maintenance, 190 DEG C finally were risen to by temperature is controlled using 10 minutes time,
And maintain the temperature 20 minutes, to complete to clear up.It is cleared up by this kind of mode, the rate of recovery in sample is more preferable, is surveyed with reducing
Determine error, improves the precision and accuracy of measurement.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive, which is characterized in that include the following steps,
S1, sample treatment: formulated food additive samples that 0.5g makes quantitatively are weighed in counteracting tank, every part of sample does multiple
In parallel, and 1mL hydrogen peroxide and 5mL nitric acid is added, subsequent sealed digestion tank is cleared up；With super after sample cooling after resolution
Pure water is transferred in 50mL scale volumetric flask, and is settled to 50mL and is shaken up, and sample to be tested solution is obtained；In the step overall process with
Track makees blank control sample, and it is spare that blank solution is made；
S2, standard solution are prepared: (1) hybrid standard uses solution: use national standard stock solution GBW, with the nitric acid of 2 volumes and
The concentration that it is diluted to lead and arsenic by the dilute nitric acid solution that the water of 98 volumes is mixed step by step is the mixing of [μ of ρ=1.0 g/mL]
Standard uses solution；
(2) standard curve working solution: taken amount element hybrid standard uses solution, is configured to standard series with dilute nitric acid solution: lead
Concentration gradient with arsenic is 0.0ng/mL, 0.5ng/mL, 1.0ng/mL, 10.0ng/mL, 50.0ng/mL and 100.0ng/mL；
(3) internal standard is 1 μ g/mL using liquid concentration: taking appropriate inner mark solution germanium 73, bismuth 209 and is diluted to dilute nitric acid solution dense
Degree is 1 μ g/mL；
(4) instrument tuning is 1ng/mL using liquid concentration: taking appropriate instrument to tune liquid, is diluted to 1ng/mL with dilute nitric acid solution；
S3, adjustment ICP-MS instrument parameter:
1 icp ms reference conditions of table
S4, in order by standard solution, blank solution and sample to be tested solution inject icp ms in, survey
The signal response for determining lead, arsenic and internal standard element, using the concentration of element to be measured as abscissa, element to be measured and selected internal standard element
The ratio of response signal value is ordinate, draws standard curve, according to standard curve respectively obtain in sample to be tested solution lead and
The concentration of arsenic.
2. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive according to claim 1, special
Sign is that sealed digestion tank carries out micro-wave digestion by microwave device in the step S1.
3. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive according to claim 2, special
Sign is that it is 180 DEG C that sealed digestion tank, which carries out the temperature setting of micro-wave digestion, in the step S1, and the time is arranged at 15~20 points
Clock.
4. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive according to claim 2, special
Sign is that the microwave device carries out the temperature and time setting such as the following figure when micro-wave digestion:
2 micro-wave digestion referral procedure of table
5. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive according to claim 1, special
Sign is that blank solution carries out constant volume in the step S1 after being made, and each standard solution in the step S2 is equal after preparing
Carry out constant volume, and the constant volume capacity of the standard solution and blank solution and the sample to be tested solution in the step S1 are determined
It is consistent to hold capacity.
6. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive according to claim 1, special
Sign is, in the step S2 internal standard using the element to be measured of liquid recommend selection isotope and internal standard element relationship it is as follows
Figure:
The analysis amount of substance and internal standard that table 3 is recommended
7. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive according to claim 1, special
Sign is that the germanium 73 of taken amount, the concentration of bismuth 209 are 10 μ g/mL in the step S2, and dilutes 10 times by dilute nitric acid solution
It obtains the internal standard and uses liquid.
8. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive according to claim 1, special
Sign is that sample does parallel quantity and is set as two in the step S1.
9. the detection method that lead and total arsenic measure simultaneously in a kind of formulated food additive according to claim 1, special
Sign is that the counteracting tank in the step S1 is set as polytetrafluoroethylene (PTFE) counteracting tank.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855352A (en) * | 2020-07-22 | 2020-10-30 | 广州汇标检测技术中心 | Method for measuring total arsenic content in zeolite powder |
| CN114076793A (en) * | 2020-08-13 | 2022-02-22 | 深圳市疾病预防控制中心（深圳市卫生检验中心、深圳市预防医学研究所） | Method for determining iodine content in food based on inductively coupled plasma mass spectrometry |
| CN114487077A (en) * | 2020-11-12 | 2022-05-13 | 中国石油天然气股份有限公司 | Method for measuring arsenic content in diesel oil |
| CN115753961A (en) * | 2022-11-18 | 2023-03-07 | 湖南安基检测技术有限公司 | Method for measuring indium in soil by ICP-MS |
| CN118408994A (en) * | 2024-05-24 | 2024-07-30 | 湖北省疾病预防控制中心（湖北省预防医学科学院） | High-efficiency sensitive detection method for arsenic content in blood |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412034A (en) * | 2013-08-12 | 2013-11-27 | 江西省烟草公司抚州市公司 | Measuring method for quickly measuring contents of heavy metals in tobacco by using microwave digestion/ICP-MS method |
| CN103940897A (en) * | 2014-05-13 | 2014-07-23 | 广州金域医学检验中心有限公司 | Method for determining traces of mercury, cadmium, lead and arsenic in food by inductively coupled plasma mass spectrometry (ICP-MS) |
| CN105021692A (en) * | 2015-08-06 | 2015-11-04 | 云南同创检测技术股份有限公司 | Method for simultaneously determining multiple inorganic elements in cigarette liquid of electronic cigarette |
| CN105784828A (en) * | 2016-03-09 | 2016-07-20 | 上海烟草集团有限责任公司 | Determination method of chromium elements, nickel elements, arsenic elements, selenium elements, cadmium elements and lead elements in Snus |
| CN106018536A (en) * | 2016-05-18 | 2016-10-12 | 中山出入境检验检疫局检验检疫技术中心 | Method for measuring various chemical elements in edible printing ink simultaneously |
| CN106645371A (en) * | 2015-11-03 | 2017-05-10 | 吉林天士力矿泉饮品有限公司 | Determination method for heavy metal content in mineral water |
| CN107991376A (en) * | 2017-11-01 | 2018-05-04 | 广西壮族自治区食品药品检验所 | The method of 5 kinds of element synchronization detections in Gegen Qinlian preparation |
-
2019
- 2019-07-04 CN CN201910600553.3A patent/CN110174458A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412034A (en) * | 2013-08-12 | 2013-11-27 | 江西省烟草公司抚州市公司 | Measuring method for quickly measuring contents of heavy metals in tobacco by using microwave digestion/ICP-MS method |
| CN103940897A (en) * | 2014-05-13 | 2014-07-23 | 广州金域医学检验中心有限公司 | Method for determining traces of mercury, cadmium, lead and arsenic in food by inductively coupled plasma mass spectrometry (ICP-MS) |
| CN105021692A (en) * | 2015-08-06 | 2015-11-04 | 云南同创检测技术股份有限公司 | Method for simultaneously determining multiple inorganic elements in cigarette liquid of electronic cigarette |
| CN106645371A (en) * | 2015-11-03 | 2017-05-10 | 吉林天士力矿泉饮品有限公司 | Determination method for heavy metal content in mineral water |
| CN105784828A (en) * | 2016-03-09 | 2016-07-20 | 上海烟草集团有限责任公司 | Determination method of chromium elements, nickel elements, arsenic elements, selenium elements, cadmium elements and lead elements in Snus |
| CN106018536A (en) * | 2016-05-18 | 2016-10-12 | 中山出入境检验检疫局检验检疫技术中心 | Method for measuring various chemical elements in edible printing ink simultaneously |
| CN107991376A (en) * | 2017-11-01 | 2018-05-04 | 广西壮族自治区食品药品检验所 | The method of 5 kinds of element synchronization detections in Gegen Qinlian preparation |
Non-Patent Citations (2)
| Title |
|---|
| 林志生等: "电感耦合等离子体-质谱法测定食品添加剂丙二醇中的铅", 《广东化工》 * |
| 林津等: "电感耦合等离子体质谱法测定固体饮料中有害元素的含量及其来源分析", 《食品安全质量检测学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855352A (en) * | 2020-07-22 | 2020-10-30 | 广州汇标检测技术中心 | Method for measuring total arsenic content in zeolite powder |
| CN114076793A (en) * | 2020-08-13 | 2022-02-22 | 深圳市疾病预防控制中心（深圳市卫生检验中心、深圳市预防医学研究所） | Method for determining iodine content in food based on inductively coupled plasma mass spectrometry |
| CN114076793B (en) * | 2020-08-13 | 2023-06-09 | 深圳市疾病预防控制中心（深圳市卫生检验中心、深圳市预防医学研究所） | Method for measuring iodine content in food based on inductively coupled plasma mass spectrometry |
| CN114487077A (en) * | 2020-11-12 | 2022-05-13 | 中国石油天然气股份有限公司 | Method for measuring arsenic content in diesel oil |
| CN115753961A (en) * | 2022-11-18 | 2023-03-07 | 湖南安基检测技术有限公司 | Method for measuring indium in soil by ICP-MS |
| CN118408994A (en) * | 2024-05-24 | 2024-07-30 | 湖北省疾病预防控制中心（湖北省预防医学科学院） | High-efficiency sensitive detection method for arsenic content in blood |
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Application publication date: 20190827 |