주제어 |
2-ethylhexyl
|
1
|
1
|
|
di-
|
1
|
1
|
|
di-2-ethylhexyl-phosphoricaci ...
|
1
|
1
|
|
topo
|
1
|
1
|
|
extractant
|
3
|
2
|
|
tri-butyl-phosphate (tbp)
|
2
|
1
|
|
trioctylphoshineoxide
|
2
|
1
|
|
d2ehpa
|
7
|
2
|
|
di-(2-ethylhexyl)phosphoricac ...
|
4
|
1
|
|
copperion
|
6
|
1
|
|
poly vinyl alcohol
|
7
|
1
|
|
phosphoric acid
|
13
|
1
|
|
polysulfone
|
29
|
2
|
|
ii
|
16
|
1
|
|
polyvinyl chloride
|
17
|
1
|
|
solid phase extraction
|
18
|
1
|
|
immobilization
|
97
|
3
|
|
pb
|
35
|
1
|
|
strontium
|
42
|
1
|
|
pva
|
55
|
1
|
|
cu
|
71
|
1
|
|
extraction
|
139
|
1
|
|
copper
|
199
|
1
|
|
계 |
|
766 |
28 |
|
* 주제로 분류 되지 않은 논문건수 |
|
0 |
|