Qualitative and quantitative procedures for the analysis of creams of the oil-in-water type are
reviewed and discussed, with special attention to the clean-up methods. It is concluded that …

Breakthrough patterns of eluents containing tetrabutylammonium or cetyltrimethylammonium
ions (two frequently used ion-pairing agents in high-performance liquid chromatography) …

The use of lithium nitrate as a test substance for the determination of the hold-up time on μ
Bondapak C18 columns has been evaluated by comparison with the hold-up time calculated …

The possibilities of applying reversed-phase high performance liquid chromatography to the
analysis of o/w emulsion type creams without preceding sample clean-up were investigated…

A standard procedure, consisting of twotlc systems, for the qualitative control of creams is
presented. All common cream excipients, except those of very high polarity, are separated in a …

The application of GLC, HPLC and TLC to the analysis of pharmaceutical creams is
discussed with special attention to sample clean-up. The results of the determination of …

The uv absorbing properties of the components of the cream bases as described in the
Formulary of the Dutch Pharmacists were investigated. Directuv spectrophotometric …

A standardtlc procedure was tested for its applicability in the qualitative analysis of several
creams. It was found that in creams of known composition the presence of almost all of the …

The possibilities of the gas-liquid chromatographic analysis with flame ionization detection
of creams of the o/w emulsion type were investigated. Interferences by cream base …

The possibilities for the determination of active components in creams by acid-base titrations
in non-aqueous solvents were investigated. Interference by cream-base components with …