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Column ferrules for PerkinElmer, Thermo Scientific, and Varian/Bruker GC Systems.
High-pressure valve heads, rotor seals and stators, and bearing rings for column switching valves
This GC column fittings range includes the winged column nut and standard inlet/detector and MSD transfer line GC nuts.
Column nuts for PerkinElmer, Thermo Scientific, Shimadzu, and Varian/Bruker GC systems.
Agilent GC column baskets and hangers include a 6850 capillary column basket, 13-cm (5-in) basket hanger and 18-cm (7-in) basket clip kit and hanger for 6890, 5890 and 5880A.
How to build an unknown analysis report for qualitative analysis
How to build an unknown analysis report for qualitative analysis
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Hai. I'm trying to build a qualitative analysis report using Report Builder 12.1. I followed the steps from the "Report Builder Familiarization Guide". However, there are certain things were not included in the guide. 1.
Extract Chromatograms in MassHunter 13 Qualitative Analysis
Extract Chromatograms in MassHunter 13 Qualitative Analysis
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I suddenly can no longer extract chromatograms in MassHunter 13 Qualitative Analysis. I've tried closing MassHunter completely and starting it back up, and rebooting the computer, but I still can't do it. Has anyone else experienced this?
FTS compounds in PFAS 1633 analysis
FTS compounds in PFAS 1633 analysis
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We recently installed a new Agilent QQQ LC-MS (6495C) for EPA Method 1633 PFAS analysis. I am consistently having trouble getting the most of the FTS compounds to pass the ICAL criteria. I have already tried Fresh ICAL standards, New mobile phases and solvents, Freshly prepared solutions but the issue still persists.
EPA 524.2 Analysis: External QC Recovery Problem
EPA 524.2 Analysis: External QC Recovery Problem
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I am working with EPA Method 524.2 using an Agilent 7890A GC-MS and a Teledyne Tekmar Atomx/Aquatek LVA purge and trap. My calibration curve for regulated volatile organic compounds (VOCs) ranges from 2, 5, 10, 20, to 50 ppb. My fortification solution containing the internal standards and surrogates is prepared as follows: from a 2000 ppm stock solution, I take a 0.125 mL aliquot and dilute it to 10 mL with methanol, yielding a final concentration of 25 ppm. For every 5 mL of sample, the purge and trap add 5 µL of this solution, resulting in a final concentration of 25 ppb. My calibration curve (2–50 ppb) is prepared as follows: PDS #1 (10.0 ppm): Prepared with a 0.125 mL aliquot of the 2000 ppm VOC stock diluted to 25 mL. PDS #2 (1.0 ppm): Prepared with a 2.5 mL aliquot of PDS #1 diluted to 25 mL. For the calibration standards, I prepare the following in 100 mL: 2 ppb: 0.200 mL of PDS #2 (1.0 ppm) 5 ppb: 0.500 mL of PDS #2 (1.0 ppm) 10.0 ppb: 1.0 mL of PDS #2 (1.0 ppm) 20.0 ppb: 0.200 mL of PDS #1 (10.0 ppm) 50.0 ppb: 0.500 mL of PDS #1 (10.0 ppm) My internal standard responses across the calibration curve are: Std 2.0: 4,962,777 Std 5.0: 5,101,901 Std 10.0: 5,320,655 Std 20.0: 5,331,901 Std 50.0: 5,670,527 In this calibration curve, I achieve a %RSD 0.99. Furthermore, the recovery percentages for each analyte are around 90–110% of the standard's true value. However, when analyzing the certified external QC (prepared by spiking 20 µL into 100 mL, as indicated by the certificate), the internal standard response is 5,366,161, but several analytes show recoveries significantly higher than their expected values on the certificate.
Handy stainless steel tools for proper column installation lengths into the most popular GC inlets.
Kits for column switching valves containing capillaries, fittings, heat exchangers, and other tools
Supplies to ensure the performance of the thermostatted column compartment in HPLC systems
Target compound quantitation in LC/MS and GC/MS analyses
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For QC of synthetic oligonucleotides when analyzed by single quadrupole LC/MS.
Confirms target compounds and identifies unknown analytes.
A single-column solution that delivers higher productivity for ASTM D2505.
Polaris HPLC columns offer simple, robust operation in normal phase and SFC modes.
Analyzes trace-level oxygenate impurities in gas and liquid hydrocarbon streams.
Agilent's capillary column rinse kit for GC systems makes solvent rinsing easy. Passing solvents through the column removes many contaminants that accumulate in it.
A base-deactivated PEG column specifically designed for amine analysis, delivering excellent peak shape for primary amines.
Styrene-divinylbenzene copolymer-based column for high-temperature GPC/SEC analysis of polyolefins
Column for organic GPC/SEC of polar polymers with polar organic solvents, such as DMF or DMSO
Silica-based diol for aqueous SEC analysis of proteins, peptides, enzymes, gelatins (USP L20).
