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Large Volume Splitless Injection Using an Unmodified Split/Splitless Inlet and GC-TOFMS for Pesticides and Brominated Flame Retardants
Concurrent solvent recondensation large volume splitless injection (CSR-LVSI) GC/MS is used here for analyzing pesticides and brominated flame retardants in drinking water based on EPA Method 527. CSR-LVSI allows a time-consuming sample extract concentration step to be eliminated, but can also be used with extract concentration for lower detection limits.
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Rxi® GC Columns: 3-IN-1 TECHNOLOGY
Rxi® GC columns deliver more accurate, reliable trace-level results than any other fused silica column on the market. Take variation out of the equation and lower detection limits with highly inert, low bleed Rxi® gas chromatography columns.
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Analysis of Trace Hydrocarbon Impurities in 1,3-Butadiene Using Optimized Rt®-Alumina BOND/MAPD PLOT Columns
Impurity analysis of 1,3-butadiene on an Rt®-Alumina BOND/MAPD column results in good separation of both light polar impurities (methyl acetylene, propadiene) and 4-vinylcyclohexene, a heavier contaminant that often requires testing on a second column.
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Analyze Trace Polar Hydrocarbons More Accurately and Reliably With New Alumina BOND/MAPD PLOT Columns!
Rt®- and MXT®-Alumina BOND/MAPD PLOT columns outperform other MAPD columns for trace analysis of methyl acetylene, acetylene, propadiene, and other polar hydrocarbons. The new deactivation results in more predictable responses, increased capacity, and higher temperature stability.
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USLC™ Columns Put the Right Tools in Your LC Method Development Toolbox
Column selectivity has the most significant influence on chromatographic peak separation, or resolution, so choosing the right column can greatly speed up HPLC and UHPLC method development. In this article, we discuss column choice and identify a set of just 4 stationary phases—Restek’s USLC™ column set—that encompass the widest range of reversed phase selectivity available today.
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Rxi®-624Sil MS Columns: Exceptionally Inert, Low Bleed Columns for Volatiles Analysis
Analyze volatile compounds and polar analytes with greater confidence using Rxi®-624Sil MS columns. Optimized selectivity, higher inertness, and lower bleed result in reliable separations and accurate, trace-level determinations. Includes environmental and pharmaceutical applications.
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Comparing Pesticide Residues in Amish and Commercially Grown Strawberries and Spinach Using QuEChERS, Various dSPE Sorbents, and GC-TOFMS
QuEChERS extraction, dSPE cleanup, and GC-TOFMS analysis were used to assess pesticide residue levels in strawberry and spinach from both commercial and Amish growers. Various dSPE sorbent products were compared to determine which were most effective.
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Determining Pesticides in Dietary Supplements with QuEChERS Extraction, Cartridge SPE, and GCxGC-TOFMS
The novel approach used here combines QuEChERS extraction, cartridge SPE cleanup, and GCxGC-TOFMS analysis, resulting in good recoveries for a wide range of pesticides in dietary supplements. Matrices include dandelion root, sage, and a multi-herb finished product.
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LC/MS/MS Analysis of Metabolites of Synthetic Cannabinoids JWH-018 and JWH-073 in Urine
This application note details a fast extraction and analysis method for a wide range of metabolites of synthetic cannabinoids JWH-018 and JWH-073 in urine. Quantitative results are reported for carboxylated and mono-hydroxylated metabolites, including positional isomers.
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Fast, Definitive Data for Blood Alcohol Testing
New Rtx®-BAC Plus 1 and Rtx®-BAC Plus 2 columns provide definitive results quickly, so you can maximize sample throughput. These columns baseline separate all critical blood alcohol compounds, including ethanol, methanol, acetone, tert-butanol, acetaldehyde, isopropanol, and n-propanol, in less than 2 minutes.
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