This method was developed for the extraction of total petroleum hydrocarbons (silica gel treated-hexane extractable material (SGT-HEM) as described in EPA method 1664) from water samples. The analytes are determined by gravimetric analysis.
Tags: Application Notes, Column, English, Environmental, Environmental contaminants, Gravimetric, Total Petroleum Hydrocarbons (TPH, SGT-HEM), Water
This method was developed for extraction of total petroleum hydrocarbons (or silica gel treated-hexane extractable material (SGT-HEM) as described in EPA method 1664) from water samples using the AutoTrace system.
Tags: Application Notes, Environmental contaminants, Total Petroleum Hydrocarbons (TPH, SGT-HEM), Water
The first decision that needs to be made is what the final analysis will be for the analyte. This will have an impact on the sample and cartridge size, as well as the final elution solvent. Gas chromatography offers higher sensitivity than HPLC, while HPLC is better suited for ionisable species and very high molecular weights. If LC-MS is available, minimal sample clean-up may be required.
Tags: Manuals & User Guides
Biotage presented five new posters at the ASMS conference in San Diego this June. We've collected them all below for download. P177: Comparison of Sample Preparation Options for the Extr...11 January 2018
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Dilute and shoot (D&S) methods are promoted for use by analytical instrument vendors in clinical, forensic toxicology and bioanalytical laboratories. More sensitive LC-MS/MS systems make this s...27 March 2015
Biotage, pioneers in flash chromatography, started packing columns with silica for flash purification 30 years ago. Some of the first employees are still with us today. In this video, site director...08 January 2015
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What is the maximum capacity of an SPE column?
The capacity of a sorbent is defined as the total mass of strongly retained analyte that can be retained by a given mass of the sorbent under optimum conditions.
For most sorbents, this can range from 1-5% by weight. 100 mg of sorbent might retain 1-5 mg of analyte.
Ion exchange sorbents typically have a capacity of 0.3-1 meq/g.Browse more questions and answers >