TY  - BOOK
AU  - Alfassi,Zeev B.
AU  - Wai,Chien M.
TI  - Preconcentration Techniques for Trace Elements
SN  - 0-8493-5213-4
U1  - 543 
PY  - 1992///
CY  - Boca Raton, London
PB  - CRC Press
KW  - Trace elements- Analysis
ER  -