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文献和实验. 4). 10) Place a sterile syringe filter into the air vent (Fig. 4). 11) Move the flow circuit into a humidified incubator at 37 °C, 5% CO2 . 12) Clamp the hard tubing into the roller pump head indicated for use with this type
and rinse with distilled water.将预装的储液容器置于柱的顶部，以蒸馏水清洗。 4. Insert an end piece or an adaptor at the bottom of the column.将柱底部的末端或接头插入。 5. Mount the column with the packing reservoir vertically on a laboratory stand. Eliminate air from the column dead
Determination of Household Insecticides in Indoor Air by Gas Chromatography-Mass Spectrometry
consisting of a glass fiber filter (GFF) and two polyurethane foam (PUF) plugs, followed by a high-volume air pump. This combination is used to sample particle-bound compounds (on the GFF) as well as gaseous compounds (on the PUF plugs). GFFs and PUF plugs
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