Merck 1024 Ftalat acid de potasiu 100.00±0.05% g 25 1 431lei 2 Merck 119533 Cianuri-sol. Standard 1000 mg/l K2[Zn(CN)4] in H2O ml 500 1 132 lei 4 Merck 119779 Crom sol.standard 1000 mg/l Cr Cr(NO3)3 in HNO3 0.5 mol/l ml 100 1 94,1 lei 5 Merck 109460 Sol.tampon pH 8.00 pH = 8 pH=8.00±0.03 la 20oC, sol. tampon apoasa mL 1000 1 168 lei 6 UltraScientific RGO-102X Method 1664 Precision, Accuracy and Recovery Standard n-hexadecan...

Merck 1024 Ftalat acid de potasiu 100.00±0.05% g 25 1 431lei 2 Merck 119533 Cianuri-sol. Standard 1000 mg/l K2[Zn(CN)4] in H2O ml 500 1 132 lei 4 Merck 119779 Crom sol.standard 1000 mg/l Cr Cr(NO3)3 in HNO3 0.5 mol/l ml 100 1 94,1 lei 5 Merck 109460 Sol.tampon pH 8.00 pH = 8 pH=8.00±0.03 la 20oC, sol. tampon apoasa mL 1000 1 168 lei 6 UltraScientific RGO-102X Method 1664 Precision, Accuracy and Recovery Standard n-hexadecan, acid stearic 2000 µg/g din fiecare ml 100 1 826,5 lei 7 Merck 119814 Soluţie Fluoruri 1000mg/l As (+5) NaF in H2O ml 500 1 129 lei1 Environment Canada Hamil 20.2 A natural water from Hamilton Harbour ml 500 Conductivitate-550uS/cm,alcalinitate-110, duritate-167, pH - 8.14,Ca - 46.2, F - 0.280, Mg - 12.7,Si - 0.883, Cl-71.7,DOC-3.00, K- 3.97, Na-42.5,SO42--43.4, NKj-0.310, Ntot-2.24, DOC - 3.00 Ioni majori si nutrienti 1.873,88 lei 2 UKAS LGC6019 River Water- River Thames mL 250 Al-73,Cd-0.11,Cr-0.78,Cu- 15.4,Fe- 287, Pb- 5.2, Zn- 59.7 µg/l Ca- 109,Mg- 4.62, K- 4.78 Na- 24.7mg/l Metale in urme 2.011,37 lei 3 Environment Canada TM-24.4 A low level fortified sample for trace elements mL 500 Al-32.9, As-5.30, Cd-3.96, Cr-5.00, Co-6.27, Cu-6.31, Fe-16.0, Pb-5.60, Mn-8.24, Mo- 6.30, Ni- 5.03 µg/L Metale in urme 1.962,23 lei 5 Sigma-Aldrich QC1195 Simple Nutrients-WP mL 20 NH4-N-12.4±0.160, NO3-N-21.4±0.503, PO4-P-1.56±0.0345 mg/l Nutrienţi 327,04 lei 6 Sigma-Aldrich QC1001 Nutrients C/V Sample 2 mL 2 NKj - 7.7±0.137, Ntot - 7.7±0.137, Ptot - 2.05±0.0350 mg/L Nu

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