Perkin Elmer, N9304938, Methanol, LC/MS Grade, ≥99.9% (4x4L)

Our range of high purity LC/MS grade solvents, specifically optimized and tested for LC/MS suitability, ensure high-sensitivity analysis with minimal impurities and interferences. Designed for the most demanding UHPLC and MS applications, you can be assured of the following:   No LC/MS TIC signals higher than 50 ppb Reserpine (ESI+ mode) and 50 ppb 4-Nitrophenol (ESI– mode) Very low metal concentration Low particles (sub-micron filtered) Packaged in amber glass bottles with Actual Lot Analysis printed on each label QR codes on labels for quick access to SDS   Our solvents are extensively QC tested to ensure the highest purity and lot-to-lot consistency. Testing Parameters Methanol LC/MS Grade Specification ESI+ mode (as reserpine) ≤ 50 ppb ESI- mode (as 4-nitrophenol) ≤ 50 ppb Assay (by GC) ≥ 99.9 % Water ≤ 0.03 % Color (APHA) ≤ 10 Titratable acid ≤ 0.0003 mEq/g Titratable base ≤ 0.0002 mEq/g Maximum UV absorbance λ: 220 nm  Amax: ≤ 0.25 Au λ: 230 nm  Amax: ≤ 0.15 Au λ: 254 nm  Amax: ≤ 0.02 Au λ: 280 nm  Amax: ≤ 0.01 Au LC gradient suitability/elution test ≤ 2 mAU at 254 nm Residue after evaporation ≤ 1 ppm Trace metal impurities (ppb) ≤ 5-50 ppb (depending on element - 18 elements tested)