Exaxol 21 Component, 100ppm ICP-MS, Quality Control Standard, QC #21, in 5% HNO3/Tr HF

21-Component ICP-MS QC Standard QC #21, 100 ppm by Exaxol, catalog numbers MSQC210-100, MSQC210-250, and MSQC210-500, is a 21-element quality control standard (QC #21) at 100 ppm per element in 5% nitric acid with trace HF, for second-source calibration verification. Available in 100 mL, 250 mL, and 500 mL from MBP, a registered vendor to many research institutes across the USA.