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Stationary phases. Part 39 (1) : Trace analysis of RDX in HMX on a novel copoly(vinylthiazole‐vinylimidazole) stationary phase by HPLC
Author(s) -
Shieh KuanJiunn,
Lee SheauLong,
Chang ChenqShyong,
Wen ChengHau,
Den TschauGan
Publication year - 1997
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19970220413
Subject(s) - elution , phase (matter) , methanol , high performance liquid chromatography , stationary phase , impurity , chromatography , chemistry , materials science , analytical chemistry (journal) , organic chemistry
A method for the HPLC analysis of RDX and HMX on a novel copoly(vinylthiazole‐vinylimidazole) stationary phase [P(Th‐Im) phase] is described. Special elution order of RDX and HMX on this phase using methanol/water (60/40∼90/10) as mobile phase is HMX > RDX, which is quite different from those on a commercial RP‐18 phase. The chromatographic selectivities (α‐values) between RDX and HMX are 2.40∼2.55. This advantage can be used to identify the limited impurity of ca. 1 ppm RDX in HMX during the manufacture of HMX.