CN107589112A - A kind of sulphite detection reagent and its detection method - Google Patents
A kind of sulphite detection reagent and its detection method Download PDFInfo
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- CN107589112A CN107589112A CN201710810047.8A CN201710810047A CN107589112A CN 107589112 A CN107589112 A CN 107589112A CN 201710810047 A CN201710810047 A CN 201710810047A CN 107589112 A CN107589112 A CN 107589112A
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Abstract
The invention discloses a kind of sulphite detection reagent and its detection method.The reagent includes following components：5,5 two thiobis（2 nitrobenzoic acids）, tetrachloro mercury sodium, pararosaniline hydrochloridc, acetic acid, barium chloride, foamed aluminium, sodium acid carbonate, chitin, sodium molybdate, formaldehyde, glycerine, zinc acetate, water.When testing sample is solid, add deionized water after can crushing, it is cooked by slow fire, filters to take filtrate, and adds sulphite detection reagent 13 into filtrate and drip, stand 1 3min, color change is observed, when the concentration value of sulphite is higher than 0.08 μ g/g, solution colour is turned into aubergine, when the concentration value of nitrite is less than 0.08 μ g/g, solution is non-discolouring；When testing sample is liquid, sulphite detection reagent can directly be added dropwise, you can.The Test paper can quickly detect the content of sulphite in foods, and transport is easy to carry and easy to operate.
Description
Technical field
The invention belongs to chemical composition detection technique field, and in particular to a kind of sulphite detection reagent and its detection side
Method.
Background technology
Sulphite is a kind of food additives, and food brown stain is prevented by suppressing non-enzymatic browning and enzymatic browning.It is but sub-
The intake of sulfate needs strict control, and excessive intake is likely to result in gastrointestinal disorders, causes violent abdomen pain, renal dysfunction
Etc. disease.The detection method of sulphite in foods mainly has titration, spectrophotometer, electrochemical process etc..
With the improvement of living standards, the food additives residual including including sulphite to food with people is asked
Attention rate more and more higher is inscribed, market surpervision is also more and more in place.At present, the quick detection of food sulphite on sale on the market
Kit is occurred in the form of liquid reagent, and is made up of more parts of reagents, and operation is very inconvenient, and storage process is also easy
Oxidation deterioration.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of sulphite detection reagent and its detection side
Method, the Test paper can quickly detect the content of sulphite in foods, and transport is easy to carry and easy to operate.
A kind of sulphite detection reagent, including the following component counted in parts by weight：5,5- bis- thiobis（2- nitrobenzene
Formic acid）12-18 parts, tetrachloro mercury sodium 1-5 parts, pararosaniline hydrochloridc 12-21 parts, acetic acid 12-28 parts, barium chloride 1-28 parts, bubble
Foam aluminium 8-14 parts, sodium acid carbonate 1-8 parts, chitin 13-18 parts, sodium molybdate 2-7 parts, formaldehyde 1-3 parts, glycerine 13-18 parts, acetic acid
Zinc 13-28 parts, water 60-78 parts.
Preferably, above-mentioned sulphite detection reagent, including the following component counted in parts by weight：5,5- bis- thiobis
（2- nitrobenzoic acids）16 parts, 3 parts of tetrachloro mercury sodium, 18 parts of pararosaniline hydrochloridc, 20 parts of acetic acid, 25 parts of barium chloride, foamed aluminium
10 parts, 4 parts of sodium acid carbonate, 15 parts of chitin, 5 parts of sodium molybdate, 1 part of formaldehyde, 14 parts of glycerine, 20 parts of zinc acetate, 68 parts of water.
Preferably, in addition to rare-earth salts 1-8 parts.
Preferably, the rare-earth salts is thallium nitrate or nickel sulfate.
The detection method of above-mentioned sulphite detection reagent, comprises the following steps：When testing sample is solid, can crush
Afterwards plus deionized water, it is cooked by slow fire, filters to take filtrate, and sulphite detection reagent 1-3 drops is added into filtrate, standing 1-
3min, color change is observed, when the concentration value of sulphite is higher than 0.08 μ g/g, solution colour is turned into aubergine, works as nitrous
The concentration value of hydrochlorate is less than 0.08 μ g/g, and solution is non-discolouring；When testing sample is liquid, sulphite detection can directly be added dropwise
Reagent, you can.
Compared with prior art, nitrite detection reagent composition of the present invention is simple, rapidly and accurately can detect in sample
The content of nitrite, the addition of rare-earth salts is even more to improve detection efficiency, therefore has good market prospects.
Embodiment
The present invention is further described in detail below by specific embodiment.
Embodiment 1
A kind of sulphite detection reagent, including the following component counted in parts by weight：5,5- bis- thiobis（2- nitrobenzoyls
Acid）12 parts, 1 part of tetrachloro mercury sodium, 12 parts of pararosaniline hydrochloridc, 12 parts of acetic acid, 1 part of barium chloride, 8 parts of foamed aluminium, sodium acid carbonate 1
Part, 13 parts of chitin, 2 parts of sodium molybdate, 1 part of formaldehyde, 13 parts of glycerine, 13 parts of zinc acetate, 60 parts of water.
The detection method of above-mentioned sulphite detection reagent, comprises the following steps：Testing sample and water are mixed, are cooked by slow fire
Boil, filter to take filtrate, and add sulphite detection reagent 1 into filtrate and drip, stand 1min, observe color change, work as filtrate
Middle color is aubergine.
Embodiment 2
A kind of sulphite detection reagent, including the following component counted in parts by weight：5,5- bis- thiobis（2- nitrobenzoyls
Acid）16 parts, 3 parts of tetrachloro mercury sodium, 18 parts of pararosaniline hydrochloridc, 20 parts of acetic acid, 25 parts of barium chloride, 10 parts of foamed aluminium, bicarbonate
4 parts of sodium, 15 parts of chitin, 5 parts of sodium molybdate, 1 part of formaldehyde, 14 parts of glycerine, 20 parts of zinc acetate, 68 parts of water.
The detection method of above-mentioned sulphite detection reagent, comprises the following steps：Testing sample and water are mixed, are cooked by slow fire
Boil, filter to take filtrate, and add sulphite detection reagent 2 into filtrate and drip, stand 2min, observe color change, work as filtrate
Middle color is aubergine.
Embodiment 3
A kind of sulphite detection reagent, including the following component counted in parts by weight：5,5- bis- thiobis（2- nitrobenzoyls
Acid）18 parts, 5 parts of tetrachloro mercury sodium, 21 parts of pararosaniline hydrochloridc, 28 parts of acetic acid, 28 parts of barium chloride, 14 parts of foamed aluminium, bicarbonate
8 parts of sodium, 18 parts of chitin, 7 parts of sodium molybdate, 3 parts of formaldehyde, 18 parts of glycerine, 28 parts of zinc acetate, 78 parts of water.
The detection method of above-mentioned sulphite detection reagent, comprises the following steps：Testing sample and water are mixed, are cooked by slow fire
Boil, filter to take filtrate, and add sulphite detection reagent 3 into filtrate and drip, stand 3min, observe color change, work as filtrate
Middle color is aubergine.
Embodiment 4
A kind of sulphite detection reagent, including the following component counted in parts by weight：5,5- bis- thiobis（2- nitrobenzoyls
Acid）16 parts, 3 parts of tetrachloro mercury sodium, 18 parts of pararosaniline hydrochloridc, 20 parts of acetic acid, 25 parts of barium chloride, 10 parts of foamed aluminium, bicarbonate
4 parts of sodium, 15 parts of chitin, 5 parts of sodium molybdate, 1 part of formaldehyde, 14 parts of glycerine, 20 parts of zinc acetate, 68 parts of water, 5 parts of thallium nitrate.
Embodiment 1-4 detection reagent is detected, and records color and starts transformation period, it is as a result as shown in the table.
It is seen from the above data that the detection reagent developing time of sulphite of the present invention is short, Monitoring lower-cut can be extremely
0.08 μ g/g, and it is reproducible, in addition, the addition of rare-earth salts, even more shortens developing time, therefore, there is good market
Prospect.
In addition, the invention is not restricted to above-mentioned embodiment, as long as in without departing from the scope of the present invention, can take various
Mode implements the present invention.
Claims (5)
1. a kind of sulphite detection reagent, it is characterised in that including the following component counted in parts by weight：5,5- bis- thiobis
（2- nitrobenzoic acids）12-18 parts, tetrachloro mercury sodium 1-5 parts, pararosaniline hydrochloridc 12-21 parts, acetic acid 12-28 parts, barium chloride
1-28 parts, foamed aluminium 8-14 parts, sodium acid carbonate 1-8 parts, chitin 13-18 parts, sodium molybdate 2-7 parts, formaldehyde 1-3 parts, glycerine 13-
18 parts, zinc acetate 13-28 parts, water 60-78 parts.
2. sulphite detection reagent according to claim 1, it is characterised in that including the following group counted in parts by weight
Point：5,5- bis- thiobis（2- nitrobenzoic acids）16 parts, 3 parts of tetrachloro mercury sodium, 18 parts of pararosaniline hydrochloridc, 20 parts of acetic acid, chlorine
Change 25 parts of barium, 10 parts of foamed aluminium, 4 parts of sodium acid carbonate, 15 parts of chitin, 5 parts of sodium molybdate, 1 part of formaldehyde, 14 parts of glycerine, zinc acetate
20 parts, 68 parts of water.
3. sulphite detection reagent according to claim 1, it is characterised in that also including rare-earth salts 1-8 parts.
4. sulphite detection reagent according to claim 3, it is characterised in that the rare-earth salts is thallium nitrate or sulfuric acid
Nickel.
5. the detection method based on the sulphite detection reagent described in claim 1, it is characterised in that comprise the following steps：
When testing sample is solid, deionized water is added after can crushing, is cooked by slow fire, filters to take filtrate, and sulfurous is added into filtrate
Hydrochlorate detection reagent 1-3 drops, 1-3min is stood, color change is observed, when the concentration value of sulphite is higher than 0.08 μ g/g, solution
Color is turned into aubergine, and when the concentration value of nitrite is less than 0.08 μ g/g, solution is non-discolouring；When testing sample is liquid
When, sulphite detection reagent can directly be added dropwise, you can.
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Cited By (3)
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| CN108426875A (en) * | 2018-03-27 | 2018-08-21 | 山东五洲检测有限公司 | A kind of reagent and its detection method for detecting sulphite in foods |
| CN108827956A (en) * | 2018-08-16 | 2018-11-16 | 山东五洲检测有限公司 | The reagent and its detection method of nitrite in a kind of detection salted vegetables |
| CN116448742A (en) * | 2023-02-14 | 2023-07-18 | 甘肃省科学院传感技术研究所 | Nanometer sensing paper for visually detecting sulfite as well as preparation method and application thereof |
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| CN108426875A (en) * | 2018-03-27 | 2018-08-21 | 山东五洲检测有限公司 | A kind of reagent and its detection method for detecting sulphite in foods |
| CN108827956A (en) * | 2018-08-16 | 2018-11-16 | 山东五洲检测有限公司 | The reagent and its detection method of nitrite in a kind of detection salted vegetables |
| CN116448742A (en) * | 2023-02-14 | 2023-07-18 | 甘肃省科学院传感技术研究所 | Nanometer sensing paper for visually detecting sulfite as well as preparation method and application thereof |
| CN116448742B (en) * | 2023-02-14 | 2023-12-19 | 甘肃省科学院传感技术研究所 | Nanometer sensing paper for visually detecting sulfite as well as preparation method and application thereof |
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Application publication date: 20180116 |