氯化钾溶液(标称 12.8 mS/cm) 有证电导率测量标准物质,可追溯至PTB和NIST (c=0.1 mol/l) CertiPUR
铅 AAS 标准液 1,000 mg/l traceable to SRM from NIST Pb(NO ) in HNO 0.5 mol/l 1000 mg/l Pb CertiPUR
氢氧化钠溶液,最低27% (1.30) GR for analysis(用于测定氮气)
药典色度标准品Y系 for testing the colour intensity acc. to Ph. Eur. Y1-Y7 CertiPUR
乙酸氢氧化铅 anhydrous, for the analysis of sugar acc. to Horne EMSURE ACS
37%发烟盐酸 分析级 max. 0.001 ppm Hg EMSURE
钯基质调整物 for graphite furnace AAS c(Pd) = 10.0 ± 0.2 g/l (Pd(NO ) / HNO ca. 15%)
铁浓缩标准液 1000 mg Fe, (FeCl3 in 15% HCl) Titrisol
硫酸盐 IC 浓缩标准液 for 1000 mg SO42-, (H2SO4 in H2O) Titrisol
锡 ICP 标准液 1,000 mg/l traceable to SRM from NIST SnCl in HCl 7% 1000 mg/l Sn CertiPUR