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Method for detecting content of VC in vitamin C solid beverage

A solid beverage and detection method technology, which is applied in the direction of chemical analysis by titration method, can solve the problems of high cost, poor precision, long detection cycle, etc., and achieve the effect of simple operation, low detection cost and wide application of instruments

Inactive Publication Date: 2017-06-13
SHENYANG NO 1 PHARMA FACTORY DONGBEI PHARMA GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used detection method for vitamin C solid beverages is the 2,4-dinitrophenylhydrazine method in GB / T 5009.86 Determination of total ascorbic acid in vegetables, fruits and their products. This method has long detection cycle, high cost and poor precision. Therefore, researching and developing the method of vitamin C content in a kind of vitamin C solid drink is the new subject demanding prompt solution always

Method used

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  • Method for detecting content of VC in vitamin C solid beverage
  • Method for detecting content of VC in vitamin C solid beverage
  • Method for detecting content of VC in vitamin C solid beverage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Preparation of the test solution: take 10 bags of this product, grind it finely, accurately weigh 41.1648g and 41.2356g of the fine powder, put them in a 250ml Erlenmeyer flask respectively, add 100ml of freshly boiled cold water and 10ml of dilute acetic acid solution, shake To dissolve, as the test solution. Detection method

[0030] 2. Determination method:

[0031] Take the test solution, add 1ml of starch indicator solution, and immediately titrate with iodine titration solution (0.05mol / L) until the solution turns blue and does not fade within 30 seconds.

[0032] 3. Titration results:

[0033] The volume of consumed iodine titration solution (0.05mol / L) is: 9.36ml, 9.42ml

[0034] 4. Calculation results

[0035]

[0036] In the formula:

[0037] V 样 : the volume of iodine titration solution (0.05mol / L) consumed by the testing product;

[0038] W 供 : the weight of the test product, g;

[0039] F: the titer of iodine titration solution (0.05mol / L). ...

Embodiment 2

[0047] The selection of embodiment two solvents

[0048] 1. Prepare the test solution: take 10 bags of this product, grind it finely, accurately weigh 41.3070g and 41.5603g of the fine powder, put them in a 250ml Erlenmeyer flask respectively, add 100ml of freshly boiled cold water and 25ml of dilute sulfuric acid solution, and shake To dissolve, as the test solution. Detection method

[0049] 2. Determination method:

[0050] Take the test solution, add 1ml of starch indicator solution, and immediately titrate with iodine titration solution (0.05mol / L) until the solution turns blue and does not fade within 30 seconds.

[0051] 3. Titration results:

[0052] The volume of consumed iodine titration solution (0.05mol / L) is: 9.10ml, 9.36ml

[0053] 4. Calculation results

[0054]

[0055] In the formula:

[0056] V 样 : the volume of iodine titration solution (0.05mol / L) consumed by the testing product;

[0057] W 供 : the weight of the test product, g;

[0058] F: the...

Embodiment 3

[0067] The selection of embodiment three weighing sample amount

[0068] 1. Preparation of the test solution: take 10 bags of this product, grind it finely, accurately weigh 31.4271g, 31.7904g, 20.3256g, and 20.5788g of the fine powder and place them in a 250ml triangular flask respectively, add 100ml of freshly boiled cold water and dilute acetic acid Solution 10ml, shaking to dissolve, as the test solution. Detection method

[0069] 2. Determination method:

[0070] Take the test solution, add 1ml of starch indicator solution, and immediately titrate with iodine titration solution (0.05mol / L) until the solution turns blue and does not fade within 30 seconds.

[0071] 3. Titration results:

[0072] The volume of consumed iodine titration solution (0.05mol / L) is: 6.76ml, 6.99ml,

[0073] 4. Calculation results

[0074]

[0075] In the formula:

[0076] V 样 : the volume of iodine titration solution (0.05mol / L) consumed by the testing product;

[0077] W 供 : the weight...

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Abstract

The invention relates to a method for detecting a content of vitamin C in a vitamin C solid beverage in the field of analysis. The detection method comprises the following steps: collecting a sample solution to be detected, and determining by virtue of an iodometric titration method; adding a starch indicator, and recording the consumed volume of an iodometric titration solution; calculating a content of the vitamin C; wherein the sample solution to be detected is formed by mixing a solid sample, water and an acetic acid dilute solution. The raw material reagent is easy to get, the application of instruments is wide, the operation is simple, a detection result is accurate, and the detection cost is low.

Description

technical field [0001] The invention relates to a method for detecting vitamin C content in vitamin C solid drinks in the field of drug analysis. Background technique [0002] Vitamin C, also known as ascorbic acid, the English name is Vitamin C or Ascorbic acid, is an essential nutrient for humans and a few other organisms. Many animals can use glucose to synthesize vitamin C, while the human body cannot synthesize vitamin C by itself but can only obtain it from food. Vitamin C is also the one with the largest daily requirement of all vitamins (for ordinary adults, the recommended dietary supply of most vitamins is below 20 mg / day, while vitamin C is 100 mg / day) . Vitamin C is usually only found in plant foods, and animal foods basically do not contain vitamin C. All kinds of fresh vegetables and fruits are her main sources. The currently used detection method for vitamin C solid beverages is the 2,4-dinitrophenylhydrazine method in GB / T 5009.86 Determination of total as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16
CPCG01N31/16
Inventor 韩新暖李翱赵鼎
Owner SHENYANG NO 1 PHARMA FACTORY DONGBEI PHARMA GRP
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