Arsenic standard solution, 1,000 mg/L As in 2% KOH standard for AAS
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Acetone ≥99%, TECHNICAL
: VWR Chemicals
VWR®, Nitrite 1000 mg/L in water standard for ion chromatography
: VWR Chemicals
Water, AnalaR NORMAPUR® ISO 3696 Grade 3 analytical reagent
: VWR Chemicals
2-Methylbutane ≥99.0%, AnalaR NORMAPUR® analytical reagent
: VWR Chemicals
2-Propanol ≥98%, TECHNICAL
: VWR Chemicals
Acetone ≥99.7%, PESTINORM® for pesticide residue analysis
: VWR Chemicals
Ethylene glycol 99.5% for analysis
: Thermo Fisher Scientific
Butyl acetate 99+%, extra pure
: Thermo Fisher Scientific
Tetrabutylammonium dihydrogen phosphate 0.5 M in HPLC grade water for HPLC
: Thermo Fisher Scientific
2-Propanol 99.5+%
: Thermo Fisher Scientific
N,N-Dimethylformamide ≥99.8% ACS
: Thermo Fisher Scientific