1064481000 Citrat tri-sodic dihidrat pentru analiza, EMSURE ACS,ISO,Reag. Ph Eur, Merck 1kg 1*325=325 1066011000 Salicilat de sodiu pentru analiza EMSURE Merck 1kg Buc 1*484=484 1250340100 Solutie standard COD, CRM,trasabila la SRM din NIST 8000 mg/l in H2O, Merck 100ml Buc 1*173=173 1198980500 Solutie standard de fosfat KH2PO4 in H2O trasabila NIST 1000 mg/l PO4 Certipur Merck 500ml Buc 1*151=151 1198110500 Solutie standard de azotat NaNO3 in H2O trasabila NIST 1000 mg/l NO3 CertiPUR Merck 500mL Buc 1*151=151 1198120500 Solutie standard de amoniu NH4Cl in H2O trasabila NIST 1000 mg/l NH4 Certipur Merck 500ml Buc 1*151=151 1198990500 Solutie standard de azotit NaNO2 in H2O trasabila NIST 1000 mg/l NO2 Certipur Merck 500ml Buc 1*151=151 1197790500 Chromium standard solution traceable to SRM from NIST Cr(NO3)3 in HNO3 0.5 mol/l 1000 mg/l Cr CertiPUR, 500mL Buc 1*149=149 1198060500 Solutie standard de zinc, Zn(NO3)2 in HNO3 0.5 mol/l, trasabila NIST 1000 mg/l Zn Certipur Merck 500ml Buc 1 *151=151 1197860500 Solutie standard de cupru-Cu(NO3)2 in HNO3 0.5 mol/l, trasabila NIST; 1000 mg/l Cu Merck 500mL Buc 1*151=151 1197920500 Solutie standard de nichel Ni(NO3)2 in HNO3 0.5 mol/l, trasabila NIST; 1000 mg/l Ni Certipur, Merck 500ml Buc 1*151=151 1065410025 Nitroprusid de sodiu dihidrat(pentacianonitrosilferat de sodiu (III) dihidrat) pentru analiza ACS,Reag. Ph Eur Merck 25g Buc 1*231=231 Test cuveta pentru surfactanti anionici, 0,1-4,0 mg/L HACHLCK432 25/cut Cut 3*503=1509