B trace
3.SOIL MO,B,ZN CONTENT AND DISTRIBUTION IN GUIZHOU AND THEIR USES AS TRACE FERTILIZER
4.DETERMINATION OF TRACE PHOSPHORUS WITH RHODAMIN B-PHOSPHOMOLYBDENOTUNGSTATE-PVA SYSTEM
6.But have been no found a explore for trace element of anticancerous traditional Chinese medicine. Methods: We determined the Pb,Zn,Cu,Cr,Ni,Ti,Mn,Fe,Sr,Ba,Ca,Mg,Al,Mo,B,P,Si,Na,K,etc 19 kind trace elements in extract of 41 genus anticancerous Traditional Chinese Medicine,with ICP AES determination and double direction evaporation radial spectrometry.
8.Spectrophotometric Determination of Trace Amounts of Manganese with lodide-Rhodamine B-PVA System

