居住区大气中二氧化硫卫生检验标准方法 甲醛溶液吸收-盐酸副玫瑰苯胺分光光度法
Standard method for hygienic examinationnof sulfur dioxide in air of residential areas-Formaldehyde solution sampling- pararosanilinenhydrocloride spectrophotometric method
Standard method for hygienic examinationnof sulfur dioxide in air of residential areas-Formaldehyde solution sampling- pararosanilinenhydrocloride spectrophotometric method
Water quality-Determination of 9 alkylphenols and Bisphenol A-Solid phase extraction/ high performance liquid chromatography
Soil — Determination of pH — Potentiometry
Solid waste —Determination of 47 organophosphorous and pyrethroidpesticides— Gas chromatography mass spectrometry
Soil and sediment-determination of carbamate pesticidesperformance liquid chromatography-triple quadrupole massspectrometr
Soil and sediment— Determination of carbamate pesticides—Post-column derivatization- high performance liquid chromatography
Solid waste-Determination ofpolyeyclic aromatic hydrocarbonGas chromatography mass spectrometry
Water quality-Determination of sulfide Methylene blue spectrophotometric method