نشت یاب هلیوم&دستگاه کروماتوگرافی مایع سازنده

Customer Background A dye manufacturer and its third-party testing partner needed to bring their hexavalent chromium testing in line with the newly issued Chinese standard GB/T 47088-2026. Dyestuffs are used throughout textile dyeing, home textiles and apparel, so any Cr(VI) residue travels with the ...

Customer Background: Occupational Hygiene Monitoring Toxic substances in workplace air are chemical agents in the breathing zone that can harm workers' health. Their management, testing and evaluation follow occupational health standards such as GBZ/T 300.1-2026 and the exposure limit standard GBZ 2...

Customer Background Electronic-grade phosphoric acid (EGPA) is a critical wet chemical in the microelectronics and semiconductor industry. It is used in the production of large-scale integrated circuits and thin-film liquid crystal displays, mainly for chip and wafer cleaning and etching. Its purity ...

Background Most hot springs are located on fault zones and show deep-circulation characteristics, which makes them sensitive indicators of geothermal and tectonic changes deep in the crust. For this reason hot spring water is an important observation target for seismic underground fluid monitoring, ...

Background Galacto-oligosaccharides (GOS) are natural functional oligosaccharides, typically built from a galactose or glucose core carrying 1–7 galactosyl units, with degrees of polymerisation ranging from 2 to 8. In the human gut they are used by probiotics such as bifidobacteria and lactobacilli, ...