For reliable elemental analysis and proven performance when analyzing carbon, hydrogen, nitrogen, sulfur, and oxygen (CHNS/O), we have the right solution for you. Whether you are testing organic solids, liquids, volatiles or viscous substances, our instruments perfectly match laboratory needs across a wide spectrum of industries, including:
Analysis of Volatile Organic Compounds in Air by Online TD-GC. Volatile Organic Compounds (VOCs) have been identified as a major source of air pollution, and as such, have been regulated as a cause of both primary and secondary pollution, such as photochemistry smog.
Volatile Organic Composition Of Cranberries. Note 103: EPA Method 325B, Novel Thermal Desorption Instrument Modification to Improve Sensitivity Note 102: Identification of Contaminants in Powdered Beverages by Direct Extraction Thermal Desorption GC/MS Note 101: Identification of Contaminants in Powdered Foods by Direct Extraction Thermal Desorption GC/MS Note 100: Volatile and Semi-Volatile
This report is available online in PDF format: SIR 2008-5088 (2.6 MB) Analysis of the volatile organic compound content of tree cores is an inexpensive, rapid, simple approach to examining the distribution of subsurface volatile organic compound contaminants.
Mar 03, 2019 · Logistic regression analysis using the presence/absence of specific volatile organic compounds, identified a three volatile organic compound panel (propan‐2‐ol, hexan‐2‐one and ethyl 3‐methyl‐ butanoate) to have an AUROC of 0.73, with a person six times more likely to have cancer if all three volatile organic compounds were present
Because the roots are exposed to volatile organic compound contamination in the unsaturated zone or shallow ground water, the volatile organic compound concentrations in the tree cores are an indication of the presence of subsurface volatile organic compound contamination. Thus, tree coring can be used to detect and map subsurface volatile organic
When it comes to organic pollutants, we stay current with applications and guidance for routine and emerging contaminants in soil, delivering solutions for a broad range of volatile and semivolatile methods, 2-MIB, fuel oxygenates and disinfection by-products, as well as for industrial solvents.
SGE's BPX35 capillary column (Figs. 5-7) provided additional information to the volatile organic composition of blueberries with the identification of the alcohols 1-butanol, 1-pentanol, 1-hexanol, 2-ethyl-1-hexanol, 1-heptanol, 1-octanol and 1-nonanol which were not detected with J&W's DB-5MS column. The production of these alcohols may be
Owing to the varied and substantial nature of both organic and inorganic constituents in natural gas samples, it is imperative that operators utilize an analyzer created specifically for natural gas analysis. PerkinElmer offers a wide selection of pre-configured, easy to operate natural gas analyzers that provide the flexibility to consider all
Analysis of Volatile Organic Compounds in Air by Online TD-GC. Volatile Organic Compounds (VOCs) have been identified as a major source of air pollution, and as such, have been regulated as a cause of both primary and secondary pollution, such as photochemistry smog. The U.S. Environmental Protection Agency (U.S. EPA) regulates 189 hazardous air pollutants under the Clean Air Act (CAA) of 1990, 51% of which are VOCs.
Divinylbenzene (PDMS/DVB) phase was used to extract volatile compounds from a soil sample. Only water was required as the extraction solvent, which eliminates organic solvent interferences during GC analysis and reduces overall sampling and analysis costs. Method Parameters The GC/MS method parameters are shown in Table 1.
Key Drinking Water Analysis Products. For more than 55 years, PerkinElmer has been an industry leader in UV/Vis/NIR and UV/Vis instrumentation and continues to set benchmarks with the innovative LAM Our Clarus® SQ 8 GC/MS offers unsurpassed sensitivity and unparalleled stability for identification and quantitation of volatile and semi ...
Elemental Scientific specializes in inert and high-sensitivity sample introduction systems for ICP-AES and ICP-MS elemental analysis. Our product line consists of autosamplers, microFlow PFA nebulizers, concentric nebulizers, Apex desolvation nebulizers, PC3 Peltier coolers, MP2 micro peristaltic pumps, FAST solutions, application solutions and consumables.
The new Tenax® GR is a composite material of Tenax® TA and 30% graphite. The resulting material gives a higher breakthrough volume for most volatile organics, yet still has a low affinity for water. In addition Tenax GR maintains its high temperature stability to 350 degrees C. These properties make Tenax GR an ideal adsorbent for the
Atomx . The Atomx Automated VOC Sample Preparation system combines an Autosampler and Purge and Trap into a single instrument for the analysis of VOCs in soils and waters. This is the first of its kind and only system that employs a unique methanol extraction automation feature for high level soils in accordance with USEPA Method 5035.
