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TMSH is used for methylation of fatty acids, because it is just necessary to add the reagent (0.2 M in methanol) to the sample solution. Removal of excess reagent is not required, since in the injector of the gas chromatograph at 250 °C pyrolysis to volatile methanol and dimethylsulfide will occur. Due to the high reactivity, complete derivatization is often obtained at ambient temperature. However, heating (e.g., 10 min at 100 °C) in a closed sample vial may be necessary. These products contain harmful substances which must be specially labeled as hazardous. For detailed information please see SDS.
|Method||Gas chromatography (GC), derivatization|
|Composition||Trimethylsulfonium hydroxide (TMSH) in methanol|
|Derivatization type||Alkylation, methylation|
|Recommended application(s)||Chlorophenols, Chlorophenoxycarboxylic acids, Derivatization, Free acids, Lipids, Phenols, Triglycerides|
|Storage temperature||2–8 °C|