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4.8 Standard storage containers - 15 ml amber screw-cap septum bottles with Teflon faced silicone septa. Bottles and Caps - Pierce #19830, or equivalent. Septa - Pierce #12716, or equivalent. 5. Reagents and Materials 5.1 Porous polymer packing 60/80 mesh chromatographic grade Tenax GC (2,6-diphenylene oxide).
6.1.1 VOC Vials: Wide mouth 60-mL VOC vials or 40-mL VOC vials with Teflon/silicone septa for soil/sediment; 40-mL VOC vials with Teflon/silicone septa for waters. 6.1.2 Class “A” Volumetric flasks: 10-mL, 50-mL, 100-mL, and 1,000-mL with a ground-glass stopper.
Sep 01, 1991 · Fraction of N20 in the gas phase as a function of temperature and salinity (data from Weiss and Price (1980) ), and relative contribution of water to headspace gases in a 20 ml vial with a 5 ml headspace at a total pressure of 1.6 atm. 54 J.H. BUTLER AND J.W. ELKINS bility of N20 is not an issue if results are computed from the response ratios
of the gas chromatograph, chemical reaction in acetone solution, and photochemical decomposition. 1.2.3. N-Nitrosodiphenylamine decomposes in the gas chromatographic inlet and cannot be distinguished from diphenylamine. 1.2.4. Pentachlorophenol, 2,4-dinitrophenol, 4-nitrophenol, 4,6-dinitro-2-
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.
Gold plated inlet seal for Aijiren GC 2 pcs: Each: $133.22 Vial shell 2 mL clear glass 12 mm PE Plug 100 pcs ... are subject to Thermo Fisher Scientific standard ...
Waters has developed process handling protocols and QC procedures to ensure Waters Certified Vials meet their specified dimensions, levels of cleanlines, and adsorption properties. These rigorous 2-, 3-, and 4-step certification processes provide clean vials for the demands brought on by sensitive chromatography systems.
The carrier gas (helium) was set at a constant flow rate of 1.2 mL/min. Mass spectrometry employed an Aijiren 240 ion trap detector in selective ion storage mode with electron ionisation (EI). The GC method gave good linearity in the range of 10–500 µg/kg.
Advantages with “Modular Alliance” Wide range of standard and high purity H2, N2 and Zero Air generators Modular system offering a GC gas supply solution specific to your laboratory Stackable design allowing you to save space in the laboratory Combinations available for single and Multiple GC applications Very low maintenance throughout the range without opening []
For our range of Clarus GC/MS systems, we offer a full suite of instrument and laboratory consumables. Gas filters, ferrules, inlet septa and liners coupled with an extensive range of GC/MS columns are complemented by every items, such as vials, caps and standards.
Mobile phase for LC System A.—In a 1 L volumetric flask, dissolve 50 mg BHT in 20 mL 2-propanol and add 0.2 mL N-ethyldiisopropylamine, 25 mL 0.2% ammonium acetate solution, (m), 455 mL acetonitrile, and ca 450 mL methanol. Mixture cools and contracts.
2 mL Standard Opening Vials from Supelco. Our standard 2 mL vial is 12 mm in diameter, 32 mm in height, and has a 4.6 mm opening. The thread size on this vial is 8-425. Choice of clear or amber glass. Precleaned or silanized options available
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.
3.1.5 Vial Capacity and Open Access ( GC) Open Access automatically detects the maximum vial capacity number of the autosampler for an Aijiren GC (100) and uses this value to determine when Open Access must restart the Starting Vial number at 1, as different users submit more samples than the autosampler can handle.
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