Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Gelatin standard substance containing chromium and preparation method thereof

A technology of standard substance and gelatin, which is applied in the field of gelatin standard substance and its preparation, can solve the problem of no gelatin standard substance, etc., and achieve the effects of easy promotion, improved matching degree, good uniformity and stability

Inactive Publication Date: 2016-01-20
NAT INST OF METROLOGY CHINA +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the detection of chromium content in gelatin is mainly in accordance with GB / T5009.123-2003, but there is no gelatin standard substance with traceable value

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gelatin standard substance containing chromium and preparation method thereof
  • Gelatin standard substance containing chromium and preparation method thereof
  • Gelatin standard substance containing chromium and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] The present invention is a chromium-containing gelatin standard substance. Chromium is added to the base gelatin, and each kg of the base gelatin contains 10 mg of chromium.

[0022] The specific preparation method of the chromium-containing gelatin standard substance includes the following steps:

[0023] (1) Material selection:

[0024] A. The matrix gelatin adopts commercially available skin gelatin or bone gelatin, and its chromium content is about 0.1 mg / kg.

[0025] B. Chromium-containing solution: mix the chromium single element standard substance solution with ultrapure water: the chromium content of the chromium single element standard substance solution is 1000 μg / mL (produced by the Chinese Academy of Metrology, the standard is GBW08614); ultrapure water: It meets the first-level water requirements in GB / T6682-2008 analytical laboratory water specifications and test methods. The conductivity at 25°C is less than or equal to 0.01mS / m, the absorbance (254nm, 1cm optic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
electrical conductivityaaaaaaaaaa
absorbanceaaaaaaaaaa
Login to View More

Abstract

The invention discloses a chromium-containing gelatin standard substance and a preparation method thereof. The standard substance takes gelatin as a matrix, and chromium is added into the gelatin so that the chromium content of the standard substance is 10mg / kg. The chromium-containing gelatin standard substance and preparation method thereof disclosed by the invention have the following advantages and beneficial effects that: based on a characteristic that the gelatin is insoluble in clod water and soluble in warm water, trace of chromium is added into the gelatin matrix, so that the standard substance for detecting the chromium content of the gelatin is formed; the application of the standard substance facilitates the improvement of the matching degree of the standard substance and the sample matrix in the detection of the chromium content of the gelatin, thereby improving the accuracy and reliability of detection results. The preparation method of the standard substance is simple to operate and easy to promote, and the chromium content of the prepared gelatin standard substance is uniform.

Description

Technical field [0001] The invention relates to a gelatin standard substance containing chromium and a preparation method thereof. The gelatin standard substance is a measurement standard mainly used for calibrating measuring instruments and evaluating the accuracy of the measurement method. Background technique [0002] Standard substances refer to materials or substances that have one or more sufficiently uniform and well-defined characteristic values ​​to calibrate instruments, evaluate measurement methods, or assign values ​​to materials. Standard materials are required to have uniformity, stability and measurement accuracy. [0003] Gelatin is a product obtained by moderate degradation and denaturation of collagen. Gelatin has excellent physical and chemical properties and nutritional functions, so it is widely used in food and medicine. The current food additive gelatin national standard GB6783-1994 clearly stipulates that the chromium limit of skin gelatin is ≤1.0mg / kg (Gr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28
Inventor 韦超赵洋马康黄志丁王亚萍
Owner NAT INST OF METROLOGY CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com