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- W1488342209 abstract "This chapter discusses prostaglandins. Under derivatization (MO-TMS), the chapter explains that one has to evaporate the sample extract to dryness with clean and dry nitrogen. Then, the dried extract has to be stored at dry-ice temperatures until the sample is derivatized. The molecular ions of the MO-TMS derivatives are usually of low intensity but are detectable. Characteristic fragment ions are M-15 and M-31, with the M-31 ion being more abundant. The M-31 ion is intense only for ketoprostaglandins. By plotting the masses of the proceeding fragment ions, the presence or absence of a particular prostaglandin can be determined even though complete gas chromatography (GC) resolution may not be obtained. For the Prostaglandin PGA₁-MO-TMS (MW = 509), the Characteristic Abundant Ions are m/z 388, 419, 438, 478, and for the Prostaglandin PGE 1 -MO-TMS (MW = 599), the Characteristic Abundant Ions are m/z 426, 478, 528, 568, 584. Similarly for the Prostaglandin PGFl 1 -TMS (MW = 644), the Most Abundant Ions are m/z 367, 368, 438, 483." @default.
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- W1488342209 date "1996-01-01" @default.
- W1488342209 modified "2023-09-27" @default.
- W1488342209 title "Prostaglandins (MO-TMS Derivatives)" @default.
- W1488342209 doi "https://doi.org/10.1016/b978-012483385-2/50030-0" @default.
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