Water UpS ultra lc
ROMIL-UpS™ Ultra Purity Solvents
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Ultra pure water.
Proteomics
I was having a lot of issues due to contamination in LC-MS grade water from some big brands and while looking for some good quality solvents, I came across a Cambridge based company, Romil. I tried their UPS, ultra LC water and all good since then. The results are reproducible and even with different batches of water, the results are very similar. Would definitely recommend Romil for all sorts of mass spec based solvent needs.
Review Date: 9 Aug 2019 | Romil Ltd
H2O MW 18.02 FP 0.0°C BP 100.0°C d 1.00 CAS [7732-18-5]
Residue <0.00005%
Resistivity (at time of manufacture) >18 MOhm @ 25°C
pH (at time of manufacture) 5.5-8.0 @ 25°C
TOC (at time of manufacture) <10 ppb
Gradient Use Test: 205nm <0.002 AU; 254nm <0.0005 AU
Baseline drift <0.02 AU @ 205nm
Suitability for LC-MS passes test
Trace ionic impurities:
Ag, Cu, Fe, K, Mg, Mn, Ni, Pb, Zn <10 ppb each
Al, Ca <25 ppb each
Na <50 ppb
Filtered to 0.2 micron
Application: HPLC critical gradient applications, LC-MS, UHPLC
