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Method for determining silicon content in compound vitamin tablet

A multivitamin and determination method technology, which is applied in the field of determination of silicon content in multivitamin tablets by ion emission spectrometer, can solve the problems of cumbersome pretreatment, poor specificity, and easy interference, and achieves strong specificity, precision and high precision. The effect of high recovery rate and less environmental pollution

Inactive Publication Date: 2013-05-08
JIANGSU ALAND NOURISHMENT
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  • Summary
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Problems solved by technology

Standards that can be used for reference, such as MT 255-1991 "Determination of Soluble Silica in Coal Mine Water", use the sample to be mixed with NaOH and melted at 700 degrees, and then dissolved in hot water and HCL respectively. After molybdenum blue color reaction, 640nm As analyzed, the pretreatment is cumbersome, time-consuming, poor specificity, and susceptible to interference

Method used

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Embodiment Construction

[0010] The assay method of silicon content in the multivitamin tablet is characterized in that comprising the following steps: 1), preparation of reference substance solution: draw and dilute 1.0g / l silicon 250ul, 500ul, 1000ul in 100ml plastic volumetric flask, dilute with purified water and Dilute to the scale, that is, 2.5mg / l, 5.0mg / l, 10.0mg / l silicon reference solution; 2) Preparation of sample solution: Weigh 0.25-0.30g of sample, add nitric acid and perchloric acid to press 10-15ml of 5:1 mixed acid is digested at a digestion temperature of 180-190°C until white smoke comes out, transferred to a 100ml plastic volumetric flask, diluted to 80ml with an appropriate amount of purified water, and hydrogenated at 15-25°C 5-6ml of hydrofluoric acid is fully reacted for 45-60min; add 5-6g of boric acid, mix well, dilute the volume to 100ml with purified water and let stand; 3) Measure the Si 251.611nm spectral line using an inductively coupled plasma emission spectrometer. Dur...

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Abstract

The invention relates to a method for determining silicon content in a compound vitamin tablet. The method comprises the following steps: 1) preparing a reference substance solution; 2) preparing a sample solution; and 3) forming a spectral line at Si251.611nm and determining by using an inductance coupling plasma emission spectrometer. The method for determining the silicon content in the compound vitamin tablet by using the inductance coupling plasma emission spectrometer, disclosed by the invention, has the advantages of simple operation, quick speed, strong specificity, low environmental pollution, less interference and high accuracy, precision and recovery rate in determination.

Description

technical field [0001] The invention relates to a method for determining elements in health food, in particular to a method for determining silicon content in compound vitamin tablets by using an inductively coupled plasma emission spectrometer. Background technique [0002] Silicon is a mineral that is ubiquitous in nature. Silicon is absorbed by the human body in the form of metasilicic acid in water. It is mainly distributed in human skin and connective tissue. It plays a physiological role in the process of skeletalization and promotes bone development and growth. Silicon also participates in the metabolism of polysaccharides and is the main component of some glycosaminoglycan carboxylic acids. Silicon is related to cardiovascular disease. If people lack silicon, it can cause cardiovascular diseases such as myocarditis, arteriosclerosis, and coronary heart disease. The human body needs to take in about 3mg of silicon per day, which is equivalent to 8.3mg of metasilic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/71
Inventor 朱伟包亚君
Owner JIANGSU ALAND NOURISHMENT
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