Prin-Cen Scientific Limited(Prin-Cen) is a high-tech enterprise specializing in the development of scientific instruments and methods and has played a leading role in drafting several national and industry standards.Prin-Cen's independently developed products are primarily used for trace and ultra-trace analysis (ng~pg level), including high-performance ion chromatographs, liquid chromatography form analyzers, ultra-trace hexavalent chromium analyzers, fully automatic desalination/enrichment systems, etc. The analytical projects cover anions/cations, elemental form analysis (such as inorganic arsenic, methylmercury, hexavalent chromium, selenium forms, etc.), rare earth elements, and direct sample analysis of complex matrices (such as seawater&high salt). Prin-Cen's EasySpec series of chromatography workstations are powerful and user-friendly, compatible with various liquid chromatography and liquid-mass spectrometry, gas chromatography and gas-mass spectrometry, LC-ICPMS, etc., and fully comply with 21 CFR PART 11.Prin-Cen adheres to "Make hard things easy" as the core concept for development. We use excellent instruments and comprehensive methods to turn the detection problem into easy daily testing, making the test effortless.Prin-Cen also customizing specialized instruments for high-end scientific research, breaking the limits of existing instruments, and making it impossible becomes possible.