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Waters offers three lines of certified vials: LC/GC Certified Vials, LCMS Certified Vials, and TruView LCMS Certified Vials. All lines are certified as being within dimensional tolerances and are tested for chemical cleanliness by instrumentation methods. Waters LC/GC Certified Vials The LC/GC Certified Vials are tested by HPLC using UV detection.
Nov 01, 2008 · The 200 mL of the culture was directly filtered on preconditioned (with methanol, 20 mL) C 18 SEPAK cartridge (Waters Co., Milford, MA). The cartridge was treated with HPLC grade distilled water; to lyse the cells and to remove residual salts (Pierce et al., 1992). The brevetoxin was immediately eluted with 2 mL methanol three times.
Description: Restek-2015-16-Catalog_1-459; Main Product Sections ( due to File limit of FLIPHTML5) see Reference Material Section p460-628 Keywords: GC,HPLC,Chromatography Products,GC Columns,HPLC Columns Gas Sampling,Air Canisters,Sample Preparation,Syringes,Vials,GC Accessories,HPLC Accessories,Instrumentation Supplies,Chemical Standards,Reference Materials
" I routinely use Waters HPLC and GC vials for analysis. The vials never cause issues with the instrumentation and the quality is superb! No reason to look elsewhere as the cost is commensurate with the value and reliability. " Review date: 02 Mar 2020 | Waters HPLC and GC Vials
High performance liquid chromatography (HPLC) analysis showed the detection of artemisinin in methylene dichloride florets extract of A. japonica, but the concentration was too low [1.3 mg/g dry
Gas Chromatography Analysis of Gas-Phase Formaldehyde by GC-FID A calibration curve was prepared by conducting 5 consecutive analyses of each of the standard solutions with concentrations altered or sold for any commercial purpose without the written approval of Shimadzu. : +49 (0) 203 - 7687 0 Fax: +49 (0) 203 - 7666 25 [email protected]
Estimates of analyte concentrations in well-water extracts from military sites in the United States and Canada analyzed by GC-ECD and the standard HPLC (high performance liquid chromatography
The 200 mL of the culture was directly filtered on preconditioned (with methanol, 20 mL) C 18 SEPAK cartridge (Waters Co., Milford, MA). The cartridge was treated with HPLC grade distilled water; to lyse the cells and to remove residual salts (Pierce et al., 1992). The brevetoxin was immediately eluted with 2 mL methanol three times.
2 mCi/mL (2) 2 mg (1) 2.5 mCi/mL (1) 2.93 MBq/mL (1) 20 % (1) 20 mCi/mL (7) 20 µg/mL (1) 20 µmol/mL (2) 200 µg/mL (1) 2000 µg/mL (18) 2001.33 mCi/mL (2) 22.08 mCi/mL (1) 236 µCi (1) 3 mg (2) 3.06 MBq/mL (1)
To meet required regulations, it is recommended the sampling system have automatic sampling, acidification, and sparging for TOC analysis, automatic dilution capability and autocalibration using a single stock standard in order to improve reproducibility and increase throughput. To determine the level of TOC, the organic carbons must be oxidized.
6.5.2.2 Gases - To prepare standards for any of the six halocarbons that boil below 30 °C (bromomethane, chloroethane, chloromethane, dichlorodifluoromethane, trichlorofluoromethane, vinyl chloride), fill a 5-mL valved gas-tight syringe with the reference standard to the 5.0-mL mark.
Providing versatility and exceptional GC and GC-MS performance, it is an ideal choice for the Thermo Scientific ISQ 7000 GC-MS and TSQ 9000 GC-MS/MS systems. Tailor the TRACE 1300 Series Gas Chromatograph to your needs with its proprietary user-exchangeable Instant Connect injector and detector modules, and a range of Thermo Scientific
Vials and closures listed in this section are designed, engineered and manufactured for optimum performance with HPLC and LC/MS applications.
A great deal of energy, money, and time can be spent on sample preparation. The last thing you need is for a sample vial to contribute to contamination resulting in complicated data interpretation or complete reanalysis. By using certified
Autosampler ready QuanRecovery Vials and Plates with MaxPeak High Performance Surfaces (HPS) are designed to enable scientists to meet challenging sensitivity and reproducibility requirements in LC-MS peptide and protein quantification by reducing sample losses due to non-specific binding (NSB) and ionic interactions.
The-chemical agent (2.5 to 3 mg/40 ml) .is added to the empty sample bottles just prior to shipping to the sampling-'site. 6.4 Sample Collection 6.4.1 Collect all samples in duplicate. 6.4.2 Fill the.sample bottles in-such a manner that no air bubbles pass through the sample as the bottle is filled.