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Mass fragmentographic determination of cholecalciferol and 25-hydroxycholecalciferol in human serum. |
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| Authors: | B Zagalak H C Curtius R Foschi G Wipf U Redweik M J Zagalak |
| Abstract: | The serum extracts were purified by column-, thin layer- and high pressure liquid chromatography. Deuterated cholecalciferol and deuterated 25-hydroxycholecalciferol were used in internal standards. The quantitative analysis was performed using GC-mass fragmentography technique of TMS-ethers. |
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