Reactivi

1 Ammonium acetate ≥98.0%, Sodium dihydrogen phosphate anhydrous, for HPLC LiChropur 3 "TOC Standard Solution traceable to SRM from NIST 100 mg/l TOC in H₂O 4 Pyridine, for analysis EMSURE® ACS,Reag. Ph Eur 1097280100 100 ml  5 Orthophosphoric acid ≥85%,  6 "7 components: Fluorides (F-) 10mg/l ; Bromides (Br-) 20mg/l ; Chlorides (Cl-) 20mg/l ; Nitrites (NO2-) 20mg/l ; CRM, ISO 17034 and ISO 17025 Nitrates (NO3-) 20mg/l ; Phosphates (PO43-) 30mg/l ; Sulphates (SO42-) 30mg/l in Water" RM000531L1 100 ml cPa chem 1 946.50 946.50 7 "6 components: Lithium (Li+) 0.2mg/l ; Sodium (Na+) 1.5mg/l ; Ammonium (NH4+) 1.5mg/l ; Potassium (K+) 2.5mg/l ; Calcium (Ca 2+) 2mg/l ; Magnesium (Mg 2+) 2mg/l in Water, CRM, ISO 17034 and ISO 17025" RM016034L1 100 ml cPa chem 1 1031.00 1031.00 8 SPE columns, CHROMABOND HR-P, 50–100 µm, 6 mL/200 mg 730119 30 buc Macherey Nagel 1 539.50 539.50 9 CAFFEINE METHANOL SOLUTION C6035-1ML ml Sigma 1 351.36 351.36 10 Green S analytical standard 06737-25MG 25mg Sigma 1 667.20 667.20 11 Ponceau 4R analytical standard 18137-25MG 25mg Sigma 1 800.64 800.64 12 Melamine standard solution Solution contains 100 µg/ml in Methanol High quality standard for GC, HPLC CL40.1355.0001 1 ml Chemlab 1 433.20 433.20 14 Bisphenol A-d16, pentru CRSP Cluj cu sediul in str L. Pasteur , nr 6, persoana de contact Pall Timea, Motioc Raluca tel 0264594252