浩瀚GB/T 13192-1991 水质 有机磷农药的测定岛津硬质玻璃柱5%DC-200+7.5%QF-1

本标准适用于地面水、地下水及工业废水中甲基对硫磷、对硫磷、马拉硫磷、乐果、敌敌畏、敌百虫的测定。 本方法用三氯甲烷萃取水中上述农药，用带有火焰光度检测器的气相色谱仪测定。在测定敌百虫时，由于极性大、水溶性强，用三氯甲烷萃取时提取率为零，故采用将敌百虫转化为敌敌畏后再行测定的间接测定法。 本方法对甲基对硫磷、对硫磷、马拉硫磷、乐果、敌敌畏、敌百虫的检出限为10^-9～10^-10g，测定下限通常为5×10^-4～10^-5mg/L。当所用仪器不同时，方法的检出范围有所不同。

名称：硬质玻璃柱
固定液：固定液：DC200(二甲基硅油）+QF-1(聚氟代烷基硅氧烷）
担体：白色酸洗硅烷化硅藻土，80-100目
规格：2m*4mm内径
型号：5%DC-200+7.5%QF-1/白色酸洗硅烷化硅藻土，80-100目
应用：GB/T 13192-1991水质 有机磷农药的测定 气相色谱法
This standard applies to the determination of methyl parathion, parathion, malathion, dimethoate, dichlorvos and trichlorfon in surface water, groundwater and industrial wastewater. In this method, chloroform is used to extract the above pesticides in water, and it is determined by a gas chromatograph with a flame photometric detector. In the determination of trichlorfon, due to its high polarity and strong water solubility, the extraction rate was zero when it was extracted with chloroform, so an indirect determination method was used to convert trichlorfon into dichlorvos and then measure. The detection limit of this method for methyl parathion, parathion, malathion, dimethoate, dichlorvos and trichlorfon is 10-9～10-10g, and the lower limit of detection is usually 5×10-4～10 -5mg/L. When the instruments used are different, the detection range of the method is different.

Name: Hard glass column
Fixative: Fixative: DC200 (dimethicone) + QF-1 (polyfluoroalkylsiloxane)
Carrier: White acid-washed silanized diatomaceous earth, 80-100 mesh
Specifications: 2m*4mm inner diameter
Model: 5%DC-200+7.5%QF-1/white acid-washed silanized diatomite, 80-100 mesh
Application: GB/T 13192-1991 Water Quality-Determination of Organophosphorus Pesticides-Gas Chromatography