High-Purity Standards, Inc. (HPS)
High-Purity Standards has proudly served the scientific community for the past twenty years with high quality spectrometric standards and reference materials for AAS, ICP, ICP-MS, GC, GC-MS and IC, and has now expanded our stocked reference materials
Introduction
High-Purity Standards has proudly served the scientific community for the past twenty years with high quality spectrometric standards and reference materials for AAS, ICP, ICP-MS, GC, GC-MS and IC, and has now expanded our stocked reference materials...

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Changzhou Changyu Chemical Co., Ltd. was founded in 1983 and is located in Changzhou National High tech Industrial Development Zone. It is adjacent to the intersection of Changzhou Station on the Shanghai Nanjing Expressway to the south and the Chang
Distributor of chemical raw materialsJasper is an owner-managed enterprise that develops highly specialised solutions for customers in the aluminium and steel industry and local authorities. The focus of our activities is in industrial furnace engineering and firing systems, energy engi