Abstract
References
1.
Davis
T R A
Battista
S P
Kensler
C J
. (1967 ) Arch. environm. Hlth
15 , 412 .
2.
Duncan
B
Scheel
L D
Fairchild
E J
Killens
R
Graham
S
. (1962 ) Amer. industr. Hyg. Ass. J.
23 , 447 .
3.
Marcali
K
. (1957 ) Anal. Chem.
29 , 552 .
4.
Niewenhuis
R
Scheel
L
Stemmer
K
Killens
R
. (1965 ) Amer. industr. Hyg. Ass. J.
26 , 143 .
5.
Reilly
D A
. (1968 ) Analyst
93 , 178 .
6.
Zapp
J A
Jr
(1957 ) Arch. industr. Hlth
15 , 324 .