Method for the determination of propargite residues in cereals for export

This standard specifies the sampling, sample preparation and gas chromatography methods for the inspection of chlorfenapyr residues in exported grains. This standard applies to the inspection of chlorfenapyr residues in exported corn and rice. SN 0660-1997 Inspection method for chlorfenapyr residues in exported grains SN0660-1997 Standard download decompression password: www.bzxz.net
This standard specifies the sampling, sample preparation and gas chromatography methods for the inspection of chlorfenapyr residues in exported grains. This standard applies to the inspection of chlorfenapyr residues in exported corn and rice.

The appendix is ​​a reminder of the maximum limit of residues of chlortetracycline and the sensitivity of this determination method. The standard is applicable to exported corn and large piles with a height not exceeding 2m. For rice, use a single-tube sampler (2.3.1). For corn, use a 1 m long sampler. Filter the sample using a 2.2-gauge funnel. Flush with a small amount of nitromethane. Place the sample at the inlet of the gas chromatograph (4.3.1) at a temperature of 0.05 m/s. When the energy is measured, use 4 electric suction pipes to filter: transfer the filtrate to a 250 mL separatory funnel.
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