Pharmacokinetics and tissue distribution of iv injection of polyphase liposome-encapsulated cisplatin (KM-1) in rats.

Aim: The pharmacokinetics and biodistribution of cisplatin encapsulated in polyphase liposome (KM-1) were compared with those of free drug in rats.

Methods: The platinum levels in serum and normal organs, after a single dose of iv injection of free or encapsulated cisplatin to rats, were determined by induced coupled plasma atomic emission spectrometry.

Results: Serum platinum concentration-time curve after a single iv dose of KM-1 4.

Flow injection determination of gaseous sulfur dioxide with gas permeation denuder-based online sampling and preconcentration.

A simple and novel flow injection method for the determination of gaseous SO(2) is described based on gas permeation denuder (GPD) online sampling and preconcentration. The GPD is easily prepared with poly(vinylidene) difluoride microporous membrane as gas permeable material and two Perspex blocks with smooth and flat interface and rectangular engraved channels of mirror image. The sample gas is on one side of the membrane and phosphate buffer of pH 7.