Organochlorine pesticides are among the more notorious organic pollutants. Gaining wide spread attention into the latter part of the 20th century, and ultimately leading to their ban, OCPs remain with us as a legacy contaminant in the environment.
Application Notes: Environmental
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US EPA wastewater method 624 Purgeables was originally published as 40 CFR Part 136 Appendix A in the mid 1980s.
In recent years, the increasing cost and uncertain availability of helium have prompted many labs to explore the use of hydrogen as an alternate carrier gas.
Organophosphate pesticides (OPPs) are widely used globally for agricultural pest control.
Pharmaceutical and personal care products (PPCPs) are products used for personal health or cosmetic reasons.
Pharmaceutical and personal care products (PPCPs) are products used for personal health or cosmetic reasons.
This application describes a solid phase extraction (SPE) method for EPA method 8141B analytes, including organophosphorus compounds, and triazine herbicides in water.
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Gas chromatography coupled to high resolution time-of-flight mass spectrometry (GC–HRT) was used to identify halogenated organic compounds based on their mass defects in fish tissue extracts.
US EPA method 529 is the procedure to determine explosives and related compounds in finished drinking water.
Chromium (Cr) is a metal with an interesting relationship to the environment. Whereas trivalent chromium (Cr(III)) is an essential nutrient, hexavalent chromium (Cr(VI)) is a poison to humans and aquatic life and poses serious environmental and ecological threats.
EPA 8270D calls for the extraction for analysis of semi-volatile analytes in various matrices. Target analytes mentioned in the method cover a wide range of compound classes resulting in reporting lists that often approach 100 compounds.
Laboratories taking in a high volume of aqueous semi-volatile samples know that every sample is different.
Over the last decade the use of pharmaceuticals and personal care products (PPCPs) has doubled in the United States.
US EPA Method 528 determines 12 phenols in finished drinking water using solid phase extraction (SPE) and GC–MS detection.
Shodex/Showa Denko America Inc.
Horizon Technology, Inc.
Phthalates are plasticizers that are added to plastics to make them softer and more flexible. Plastics that contain phthalates are commonly used in the manufacturing of toys. Since phthalates are not permanently bonded to plastics, they can be released from toys through touching, licking, and chewing.
EPA Method 8270 is used to determine the concentration of semi-volatile organic compounds in extracts prepared from solid waste matrices such as soils, air sampling media, and water samples. Extractions from water samples can be particularly difficult and time consuming due to the problematic analytes that need to be extracted, concentrated, and analyzed.
CUSTODION SPME Syringes provide a simple, low cost methodology to collect and introduce samples to an analytical instrument. The low cost and convenience of SPME allows multiple samplers to be deployed simultaneously.
Method 525.3 is similar in many ways to its predecessor, method 525.2 (Rev 2.0 – 1995), however there are significant changes which make the newer 525.3 a vastly improved method during sample collection, extraction, and analyzing.
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