trace quantity

常見例句

Headspace gas chromatography (HS-GC), which is an important method designed for the analysis of volatile components with trace quantity in samples, is developing fast.
頂空氣相色譜法（ HS- GC）是測定樣品中痕量易揮發(fā)化合物的重要分析方法，近年快速發(fā)展。
Though the toxic organic pollutants are trace quantity in aquatic system, they cause potential hazardous effects on human health because of their high degree of biocumulatiori and carcinogenic.
有毒有機(jī)污染物雖然在水中含量甚微，卻因其生物累積性和三致效應(yīng)而對人體健康構(gòu)成潛在威脅。
The application of nitrous oxide-ethane flame atomic absorbing spectral method to measure the content of Chromium trace quantity in nickel-plating liquid of the cadmium nickel battery was studied.
運(yùn)用一氧化二氮-乙炔火焰原子吸收光譜法進(jìn)行鎘鎳電池鍍鎳溶液中鉻含量的測定。