bids are invited for pesticide extraction kit - labororatory chemicals - 1. quechers extraction kit – aoac (1000pcs)  aoac 2007.01 method, 50/pk. kit contents: 6 g mgso4, 1.5 g naacetate with 50 ml tubes with ceramic homogenizers. quechers aoac 2007.01 method, extraction salts  agency method: aoac 2007.10  kit contents: 1.5 g naacetate; 6 g mgso4;  ceramic homogenizers: yes  application: pesticide analysis 2.quechers extraction kit – en 15662 (600pcs)  4g mgso4; 1g nacl; 1g na3citrate; 0.5g na2hcitrate  agency method en 15662  ceramic homogenizers: yes  kit contents 0.5 g disodium citrate sesquihydrate, 1 g nacitrate, 1 g nacl, 4 g mgso4  application: pesticide analysis 3. c18 endcapped spe bulk sorbent -100g x 1  spe bulk sorbent, c18, endcapped, 100 g. hydrophobic, bonded silica sorbent in the bond elut range.  application: pesticide analysis 4. carbon spe bulk sorbent 25g x 1  spe bulk sorbent, carbon, 25 g. for the absorption of pigments in food, fruits and vegetables, and small organic wastewater residues.  application: pesticide analysis 5. quechers dispersive kit (1000pcs)  agency method: aoac 2007.10  general fruits and vegetables, aoac method,  2 ml with ceramic homogenizers,  shall contains 50 mg psa, 150 mg mgso4.  application: pesticide analysis total quantity : 3125