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Method for detecting iron ions in hydrolysate prepared from buffalo horn powder and application of method in Qingkailing hydrolysate

A technology of hydrolyzate and iron ions, which is applied in the field of iron ion detection, can solve problems such as inapplicability of detection methods, achieve the effects of avoiding waste of production resources, improving scientific and accurate route design, and improving accuracy and stability

Active Publication Date: 2021-09-17
GUANGZHOU BAIYUNSHAN MINGXING PHARM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the defects in the prior art or because the detection method is not applicable to the current situation of the hydrolyzate product prepared from buffalo horn powder, it is urgent to provide a method for quickly and accurately detecting iron ions in the hydrolyzate prepared from buffalo horn powder, and A method for quickly judging whether the iron ion content in Qingkailing hydrolyzate exceeds the limit, as a release basis for subsequent process steps, and improving production efficiency

Method used

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  • Method for detecting iron ions in hydrolysate prepared from buffalo horn powder and application of method in Qingkailing hydrolysate
  • Method for detecting iron ions in hydrolysate prepared from buffalo horn powder and application of method in Qingkailing hydrolysate
  • Method for detecting iron ions in hydrolysate prepared from buffalo horn powder and application of method in Qingkailing hydrolysate

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Experimental program
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Effect test

Embodiment 1

[0064] Example 1 Stability and Verification of Accuracy

[0065] Taking the iron ion determination of Qingkailing hydrolyzate as an example, the following method is used to detect the iron ion content in the hydrolyzate.

[0066] Configuration of starch indicator solution: Weigh 0.5g of soluble starch, add 5mL of water, stir evenly, slowly add 100mL of boiling water, and stir, continue to boil for 2min after adding, cool to room temperature, take the supernatant, and get ready.

[0067] method 1:

[0068] Indirect iodometric method: Take 10mL of brown-red hydrolyzate at 50±5℃ in a transparent tube, add 1mL of 6mol / L hydrochloric acid, shake and shake well, add 2g of potassium iodide powder, shake and shake well, then add the prepared starch indicator solution 2mL, the hydrolyzed solution shows blue color, add 0.001mol / L sodium thiosulfate standard solution and titrate until the blue color disappears as the end point.

[0069] Method 2:

[0070] Pretreatment: Take 10mL of th...

Embodiment 2

[0077] Embodiment 2 judges whether the iron ion content exceeds the limit in the hydrolyzate

[0078] S1. Pretreatment: Take 10mL of the brown-red hydrolyzate at 50±5°C in a transparent tube, add 10g of iodoacetamide, and shake well to obtain a colorless pretreatment solution. Wherein, the content of amino acid in the hydrolyzate is 0.02g / mL.

[0079] S2. Result determination:

[0080] S2-1. Add 1mL of 6mol / L hydrochloric acid, shake well;

[0081] S2-2. Add 2mL of prepared starch indicator solution, and the hydrolyzed solution turns blue;

[0082] S2-3. Titrate with 0.001mol / L sodium thiosulfate standard solution, shake and shake for 30 seconds;

[0083] S2-4. The blue color faded, and the solution was shaken for 30 seconds, and it was still colorless after standing for 3 to 5 minutes, indicating that the hydrolyzed solution was Fe 2+ and / or Fe 3+ The ion concentration meets the requirements for the preparation of the hydrolyzate.

Embodiment 3

[0084] Embodiment 3 Judging whether the iron ion content exceeds the limit in the hydrolyzate

[0085] S1. Pretreatment: Take 10mL of the brown-red hydrolyzate at 50±5°C in a transparent tube, add 5g of iodoacetamide, and shake well to obtain a colorless pretreatment solution. Wherein, the content of amino acid in the hydrolyzate is 0.01g / mL.

[0086]S2. Result determination:

[0087] S2-1. Add 1mL of 6mol / L hydrochloric acid, shake well;

[0088] S2-2. Add 2mL of prepared starch indicator solution, and the hydrolyzed solution turns blue;

[0089] S2-3. Add 8 mL of 0.001 mol / L sodium thiosulfate standard solution, shake well for 30 seconds;

[0090] S2-4. The blue color faded, and the solution was shaken for 30 seconds, and it was still colorless after standing for 3 to 5 minutes, indicating that the hydrolyzed solution was Fe 2+ and / or Fe 3+ The ion concentration meets the requirements for the preparation of the hydrolyzate.

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Abstract

The invention discloses a method for detecting iron ions in hydrolysate prepared from buffalo horn powder and application of the method in Qingkailing hydrolysate. According to the method disclosed by the invention, a to-be-detectedhydrolysate is pretreated, and an iodinated compound containing acetyl is added, so that the problem that the iron ions contained in the hydrolysate are difficult to accurately detect due to an end point color reversion phenomenon when the iron ions contained in the hydrolysate are detected by using the existing indirect iodometric method is solved, the interference of the background color of the hydrolysate is eliminated, the end point change is quickly judged through visual and clear color fading, the accuracy and stability of the detection result are guaranteed, real-time detection in industrial production can be realized, the production efficiency is greatly improved, and the product quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of iron ion detection. More specifically, it relates to a method for detecting iron ions in a hydrolyzate prepared from buffalo horn powder and its application in Qingkailing hydrolyzate. Background technique [0002] Buffalo horn powder is an important variety in traditional Chinese medicine clinics and in the pharmaceutical industry of traditional Chinese medicine. It has the effects of clearing away heat and calming down. Prescriptions containing buffalo horn powder usually use its hydrolyzate. In the process of preparing the hydrolyzate from buffalo horn powder, due to the influence of raw materials, reaction equipment, etc., iron ions will inevitably be introduced. Iron ion is one of the essential trace elements for the human body. It participates in the synthesis of hemoglobin, cell respiration, electron transfer, DNA synthesis and enzymatic activity. However, studies have shown that excessive intake...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/79G01N31/16G01N1/38
CPCG01N21/79G01N31/162G01N1/38
Inventor 王家祺陈昆南李同根黄孟秋陈禧翎保冰怡黄子健陈思园
Owner GUANGZHOU BAIYUNSHAN MINGXING PHARM CO LTD
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