Increase peak detection confidence with the 2424 Evaporative Light Scattering (ELS) Detector, a complementary detection technique for semi- and non-volatile compounds with little or no UV absorbance. 2414 Refractive Index (RI) Detector Achieve high sensitivity, stability, and reproducibility with the ...
Tamoxifen concentrations were analyzed by combined reversed phase liquid chromatography and UV detection (lambda=280 nm). The study was conducted using an open randomized 2-period crossover balanced design with a 1-week washout period between the doses. This simple, rapid and selective method is ...
Lambda 650/850/950紫外/可见/近红外分光光度计 型号:Lambda 650/850/950 原产地:美国 产品描述 产品特点 技术参数 双光束、双单色器、比例记录并由计算机腔制的紫外/可见(/近红外)分光光度计。 光学系统全部采用涂有SiO2保护层的反射光学元件,全息刻线光栅刻线密度最高(紫外/可见为1440条/mm,近红外360条/mm)...
1, 2, 3, 4 Literature survey reveals that vildagliptin can be estimated by UV spectroscopic method,5 RP-HPLC method, which is a time consuming method being the retention time is more than 10 min,6 RP-LC/MS method, requires mass spectroscopy detection and the LOD and LOQ are more than ...
95/5 acetonitrile/water Detection: UV @ 220 nm Sampling Rate: 20 points/sec 2.00 Filter Time Constant: 0.1 sec System: ACQUITY UPLC with ACQUITY UPLC PDA 1.50 1.00 Preparative Conditions Column: XSelect CSH C18 OBD Prep, 19 x 100 mm, 5 μm Part Number: 186005421 Mobile Phase A: 0.1% ...
The same types of ZORBAX StableBond 300 Å columns in 4.6 mm × 150 mm format at 1 mL/min were used for UV detection only. Comparison of Different StableBond Widepore Reversed-Phase Columns for Reduced and Alkylated Antibody Analysis Figure 3 shows RP chromatograms of the reduced and ...
The UV spectra (200–340 nm) were recorded using a UV/VIS Lambda 25 (Perkin Elmer Inc, Waltham, Massachusetts, USA) spectrometer and the measurements were done in quartz cuvettes, comparative to a blank sample (ethanol 70%). Each extract was filtered through a 0.4 μm nylon membrane and ...
Increase peak detection confidence with the 2424 Evaporative Light Scattering (ELS) Detector, a complementary detection technique for semi- and non-volatile compounds with little or no UV absorbance. 2414 Refractive Index (RI) Detector Achieve high sensitivity, stability, and reproducibility with the ...