Gc 7890a agilent methods .

[mido23]

hello, experts

i want everything about analysis of chlorinated pesticides in water by ECD detector & analysis of nitrogen and phosphorus containing pesticides in water by NPD detector.

ex (appropiate methods , standard preparation and sample preparation). also,
intrnational standard for drinking water .

Column (1) for Ecd detector :j&w 30m×0.320mm×0.5micron.
Column (2) for Npd detector:j&w 50m×0.320mm×1 micron.

so please , can anyone help me?

[carp12345]

Take a look at EPA methods 507 and 508. They will give you all the information you needs.