Part No: AN003-HORIssued year: 2009File size: 0.86mbFile type: pdf
This study shows that the SPE-DEX® 4790 Automated Extractor system can process water samples containing suspended particulate matter, up to 1000 mg, for the analysis of PAH’s. As PAH’s are found in both the dissolved and particulate phase of the water sample, it is important to be able to handle “whole” water samples such that the particulate matter in the water sample is retained and extracted with the SPE disk. This filtration method ensures that the PAH’s found in the dissolved phase, and those adsorbed onto the particulate matter are properly
Part No: P044Issued year: 2012File size: 0.89mbFile type: pdf
The objective was to develop a GC-MS assay for the determination of free benzodiazepines using Supported Liquid Extraction (SLE). The SLE extraction mechanism is very efficient, delivering higher analyte recoveries and cleaner extracts than equivalent LLE methods.
ISOLUTE, SLE, SLE+, Supported Liquid Extraction, Benzodiazepines, Forensic, Drugs, DOA, Drugs of Abuse, SOFT,
Part No: AN052-HORIssued year: 2009File size: 0.72mbFile type: pdf
Effective removal of residual water from organic solvents is critical to achieve optimal recoveries for water soluble compounds. Sodium sulfate has been the standard technique for removing residual water from solvent extracts for many years; however, it has several major drawbacks. Water soluble analytes in the residual water phase can become adsorbed in the sodium sulfate, leading to lower recoveries.
Part No: AN103-HORIssued year: 2016File size: 1.61mbFile type: pdf
Pesticides, including insecticides, herbicides and fungicides are used extensively to increase agricultural yields. The total world usage of pesticides in 2007 was approximately 5.2 billion pounds with the US consuming approximately 22% of the total.1 The wide use of pesticides yields concern that drinking water sources will become contaminated, exposing the population to hazardous substances that may cause cancer.
Part No: AN115-HORIssued year: 2017File size: 2.3mbFile type: pdf
Pesticides have gone far in increasing food supply, important in a world expecting to have 9.8 billion people by 2050. However, the mechanisms that make pesticides effective in eliminating pests can also cause harm to humans and animals. News stories continue to point to contamination through spills and exposure through the respiratory system.
Part No: AN054-HORIssued year: 2009File size: 0.76mbFile type: pdf
Polychlorinated Biphenyls (PCB) are a worldwide contamination problem. They are extremely stable and as such, very long lived in the environment. The end result is that PCBs tend to bioaccumulate throughout the food chain and a great deal of research and regulations have been dedicated to their study.
Part No: AN045-HORIssued year: 2009File size: 0.65mbFile type: pdf
In this application note, a suite of neutral and list 1 pesticides in methylene chloride is evaporated using the Biotage® DryVap.
Pesticides containing many different functional groups, including sulfur and phosphorus groups, halides, nitramines, atrazines, alcohol, and carbonyl groups were efficiently concentrated for GCMS analysis.
This data indicates that the DryVap System is inert and effectively manages solvent evaporation without generating localized hot spots in the system.
Part No: AN893Issued year: 2018File size: 0.91mbFile type: pdf
This application note describes the fully automated extraction of carboxy-THC from urine, following base hydrolysis prior to GC/MS analysis. The method was automated using Biotage® ExtraheraTM, configured for use with EVOLUTE EXPRESS ABN columns.
The method delivers clean extracts and analyte recovery of 90% with RSD lower than 10% for carboxy-THC and its deuterated internal standard. Using the Biotage® ExtraheraTM, 24 samples were extracted in approximately 38 minutes. The limit of quantitation of 2 ng/mL is below the SAMHSA/ EWDTS confirmation cut off of 15 ng/mL for workplace testing applications.
Part No: AN892Issued year: 2018File size: 0.87mbFile type: pdf
This application note describes the fully automated extraction of carboxy-THC from urine, following base hydrolysis prior to GC/MS analysis. The method was automated using Biotage® ExtraheraTM, configured for use with ISOLUTE SLE+ columns.
The simple sample preparation procedure delivers clean extracts and analyte recoveries greater than 80% with RSDs lower than 10% for carboxy-THC and its deuterated internal standard. Using Biotage Extrahera, 24 samples are extracted in approximately 35 minutes. Limit of quantitation is below the SAMHSA/EWDTS confirmation cut off of 15 ng/mL for workplace testing applications.
Part No: AN877Issued year: 2017File size: 2.61mbFile type: pdf
This application note describes the operating conditions for the automated fractionation of Extractable Petroleum hydrocarbons (EPH) into aliphatic and aromatic (PAH) fractions using the ISOLUTE EPH SPE column in conjunction with the Extrahera automation system.
Part No: AN110-HORIssued year: 2016File size: 2.15mbFile type: pdf
This work demonstrates the performance of automated solid phase extraction (SPE) for the extraction of PAHs from surface water sampled from a nearby pond containing some particulate. An automated system (Biotage® Horizon 4790) with Atlantic® DVB disks, following the requirements of method EN 16691, was used.
Part No: AN109-HORIssued year: 2016File size: 1.5mbFile type: pdf
This application note describes the automated solid phase extraction (SPE) and GC/MS analysis of whole water samples according to EN16691 for PAHs.
Method EN 16691 is a recently developed method that uses solid phase extraction to isolate organic compounds from 1 L of water using a divinylbenzene (DVB) solid phase extraction disk.
Part No: AN122-HORIssued year: 2017File size: 1.87mbFile type: pdf
This application note demonstrates the performance of automated disk-based solid phase extraction (SPE), using Biotage® Horizon 5000 automated extraction system and Atlantic® DVB SPE disks, for concentration of organochlorine pesticides from whole water, prior to GC/MS analysis, following the requirements of EN16693:2015.
Part No: AN120-HORIssued year: 2017File size: 1.44mbFile type: pdf
Polycyclic aromatic hydrocarbons (PAHs) can be found in a number of water types, such as drinking water, surface water, ground water and wastewater. There are serval types of extraction techniques that can be implemented to remove them from water for measurement including liquid-liquid extraction (LLE), continuous liquid-liquid extraction (CLLE) and solid phase extraction (SPE). With LLE and CLLE there is little selectivity within the methods for difficult matrices or other compound interferences.
Part No: AN002-HORIssued year: 2015File size: 0.94mbFile type: pdf
This study shows that the Biotage® 4790 Automated Extractor system, along with the Atlantic™ DVB disk, the DryDisk® separation membrane, and the DryVap® Concentrator System can be successfully used to analyze for Nonyl Phenol and Bisphenyl A in water samples. This sample preparation process is fully automated, requiring minimal human intervention, and allowing for reductions in sample processing costs.
Part No: RP-DS-04Issued year: 2010File size: 0.19mbFile type: pdf
When analyzing human urine for drugs of abuse, one of the most common tests is for the cocaine metabolite Benzoylecgonine (BZE). A contract laboratory has automated this labor intensive procedure using the RapidTrace.