Sensitive LC–MS Quantitation of Trace Organic Contaminants in Water with Online SPE Enrichment
Shane Snyder, Tarun Anumol, and Sheher Bano Mohsin, Agilent Technologies
An automated online SPE LC-QQQ method has been developed for the rapid, sensitive, reproducible, and robust analysis of trace organic compounds in wastewater. This method eliminates large sample volumes and tedious manual extraction procedure. Results were comparable to those obtained using the conventional SPE method. Read More |
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High Sensitivity Analysis of Perchlorate in Tap Water using an Agilent 6460 Triple Quadrupole LC–MS System
Ralph Hindle, Matthew Noestheden, and Don Noot, Agilent Technologies
A modification of US EPA Method 331.0 for the analysis of perchlorate in tap water with a method detection limit of 0.009 ug/L. The method was developed using an Agilent 6460 Triple Quadrupole LC-MS System. The method provides similar performance including method detection limit, recovery, and repeatability as the US EPA method. Read More |
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Using Protectants and Solvent Selection to Maximize the Stability of Organophosphorous Pesticides During GC-MS Analysis
Eduardo Morales and Anthony Macherone, Agilent Technologies
Several solvents and analyte protectants were evaluated for their ability to stabilize and maximize the recoveries of a number of organophosphorous residues during Triple Quadrupole GC-MS analysis. Hexane provided the best analyte stability for a wide range of pesticides, and d-sorbitol offered the most benefit to recovery as an analyte protectant.
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High Sensitivity GC-MS-MS Analysis of Nonpolar Organic Compounds in Water using the Agilent 7000 Triple Quadrupole GC-MS
John Quick, Richard Glendinning, and Adrian Thomas, Agilent Technologies
A highly sensitive and reliable method has been developed for 51 nonpolar compounds in potable water using GC-MS-MS. Most MRLs in potable water were 2 ng/L or less. Run time is less than 20 min, sample preparation is straight forward, and the potable water method has been accredited by the United Kingdom Accreditation Service. Read More |
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Determination of Selected Organic Contaminants in Drinking Water by Direct Aqueous Injection with the Agilent 6460 Triple Quadrupole LC-MS System
Imma Ferrer and Michael Thurman, Agilent Technologies
Sample prep is not required for the analysis of 11 selected organic compounds in drinking water according to US EPA Method 538. A method was developed using UHPLC and the Agilent Triple Quadrupole LC-MS System. Analysis time is reduced by at least half with this new method. Read More |
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Analyzing Wastewater Effluents for PAHs and PBDEs Using the Agilent 7000 Triple Quadrupole GC-MS
Dr. Michael Pinchin, Dr. Surinder Verik, and Ken Brady, Agilent Technologies
An analytical method has been developed on a triple quadrupole GC-MS system for the analysis of polyaromatic hydrocarbons and polybrominated diphenyl ethers in wastewater. With a single extraction and no cleanup, this method meets the detection limit requirements of the United Kingdom Chemical Investigations Program. Read More |
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Ultra-Fast ICP-OES Determination of Trace Elements in Water According to US EPA Method 200.7
D. Hoobin, Agilent Technologies
A method is developed using the Agilent 730 Series ICP-OES for the analysis of trace elements in water using a new innovative sample introduction system to improve throughput. This new sample introduction system greatly reduces sample uptake and washout times.Read More |
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Sub ug/L Level Analysis of Chlorinated Pesticide and Herbicide Analysis in Water by GC-uECD
Doris Smith and Ken Lynam, Agilent Technologies
Chlorinated pesticides and herbicides in water samples are successfully extracted with Agilent SPEC liquid-solid extraction disks. A dual column GC-uECD approach was used employing Agilent Ultra Inert capillary columns. A water sample fortified at a level of 0.01 ug/L and a tap water sample were extracted and analyzed. Read More |
