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Direct determination of mitoxantrone in plasma by high performance liquid chromatography using an automatic precolumn‐switching system as sample clean‐up procedure
Author(s) -
Catalin Jacques,
Peloux Anne F.,
Coloma Fabrice,
Payet Brigitte,
Lacarelle Bruno,
Cano Jean P.,
JustLandi Sylvaine
Publication year - 1994
Publication title -
biomedical chromatography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 65
eISSN - 1099-0801
pISSN - 0269-3879
DOI - 10.1002/bmc.1130080110
Subject(s) - chemistry , chromatography , reagent , high performance liquid chromatography , solvent , elution , formic acid , mitoxantrone , ammonium formate , acetonitrile , methanol , medicine , surgery , organic chemistry , chemotherapy
A high‐performance liquid chromatography method which uses direct injection and a column‐switching valve for determination of mitoxantrone in plasma is described. After addition of internal standard, plasma was deproteinized by adding 5‐sulphosalicylic acid reagent. The supernatant was injected onto an enrichment precolumn flushed with washing solvent (methanol and water 5:95). Absorbed mitoxantrone was backflushed from the precolumn into an analytical column C18 Nucleosil 250 × 4 mm with a gradient elution (solvent A, ammonium formate buffer 1.6 M , pH 4.3; solvent B, acetonitrile and water 40:60; linear gradient from 45 to 55% of B for 30 min was programmed) at a flow rate of 1.3 mL/min. Detection was carried out at 665 nm. This method showed obvious advantages over conventional extraction procedures in terms of speed and facility of sample handling.