Method capable of accurately determining content of chromium in capsule

Abstract

The invention discloses a method capable of accurately measuring the chromium content in a capsule. The method is to select an atomic absorption spectrometer; select an electric heating plate and an automatic sampler; select a chromium hollow cathode lamp; select a micropipette gun; select a transverse pyrolytic graphite tube and an electronic Analytical balance; select Cr standard stock solution; select OP emulsifier; select Merck pure nitric acid, superior pure hydrogen peroxide, superior pure hydrochloric acid, ultrapure water and argon; accurately weigh the capsule sample in a beaker, add Put concentrated nitric acid on a temperature-controlled electric heating plate, heat it in a fume hood, add hydrogen peroxide dropwise to digest to a light yellow transparent solution, then add concentrated HCl and steam until it is nearly dry, remove it, add OP emulsifier, and use ultrapure water Set the volume on the machine to be tested; take the chromium standard solution, the instrument will automatically dilute it online, and measure each sample, and draw the working standard curve of chromium under the conditions of the instrument. The method can accurately detect the chromium content in the capsule, has high determination efficiency, and protects people's health.

Description

technical field [0001] The invention relates to a method, in particular to a method capable of accurately measuring the chromium content in capsules. Background technique [0002] Drugs packed in capsules are generally powders or granules that are irritating to the esophagus and gastric mucosa, or drugs that taste bad, are easy to volatilize, are easily decomposed by saliva in the mouth, and are easy to inhale into the trachea. These medicines are packed into capsules, which not only protects the properties of the medicine from being destroyed, but also protects the digestive organs and respiratory tract. Removing the capsule shell may result in drug loss, drug waste, and reduced drug efficacy. In addition, some drugs need to be dissolved and absorbed in the intestines, and the capsule is a kind of protection to protect the drugs from being destroyed by gastric acid. In medicine, it refers to a capsule made of special film-forming materials (such as gelatin, cellulose, pol...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the low efficiency and large error of the above-mentioned existing detection method, which causes harm to the body after people take the capsule, and designs a method that can accurately measure the chromium content in the capsule. It can accurately detect the chromium content in capsules, with high determination efficiency and protect people's health. It solves the problem of low efficiency and large errors of existing detection methods, which cause people to harm their bodies after taking this capsule.