a- and 13-HCH can be determined separately from the other isomers, by gas chromatography with electron-capture detection, and other methods, after extraction by liquid/liquid partition and purification by column chromatography. ...

At ambient temperature, HCB is a white crystalline solid. Technical grade HCB is available as a wettable powder, liquid or dust. It is virtually insoluble in water, but is soluble in ether, benzene, chloroform and hot ...

In this monograph, the function and histophysiology of the immune system are reviewed, and the information necessary to understand and interpret the pathological changes caused by immunotoxic insults is provided. Emphasis ...