Study on Determination of Hydrogen Selenide in the Air of Working Sites and Determination of Chromium Trace in Human's Serum by the Method of Spectrometry
Hydrogen Selenide, a kind of gas with higher toxicity than sulfuretted hydrogen, packs quite a punch on upper respiratory tract mucosa and conjunctival. The persons who touch the gas within several minutes to three hours will appear toxic symptoms in succession. And the serious patients may further develop into chemical pneumonia or pulmonary edema.
The toxicity of each chromium compound is very different. It packs a punch on mucous membrane and may bring dermatitis and damages on liver and ki...
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