Preconcentration techniques - Determination of Anions in Natural and Treated Waters - page 745

Co Sea

water

Anion exchange 0.1 mol

L −1
cyanate
0.1mol L −1
HCl

2mol L −1
HNO3

- AAS [1

Cu Sea

water

Anion exchange

1mol L −1
cyanate
0.1 mol
L −1 HCl

2mol L−1
HNO3

- AAS [3

Cu Sea

water

Polyacryl
amidoxime
resin

- 1:1

HCIH 2 O0

- AAS [3

aqNH 3

Cu Non

saline
and
potable

Dowex 1-X8 MeOH:

HBr

- AAS [3

Metal Type
of
water

Resin Medium Eluting

agent

Detection limit Analytical

Au Non

saline

Anion exchange - - - NAA

Au Sea

water

Single bead
anion exchange

- - - Mass spectr

In Sea

water

Single bead
anion exchange

- - - Mass spectr

Ir Sea

water

Single bead
anion exchange

- - - Mass spectr

Ir Sea

water

Single bead
anion exchange

- - - AAS

1:1 H 2 O:HCl

Fe Sea

water

Polyacryl
amidoxine

- - AAS

Fe Sea

water

Amberlyst A27
(thin layer
chromatography)

Bathophenanthroline HCl
NH 2
OH
NH 4
OH pH
4-5

- Photodensit

Fe Non

saline

Anion exchange - - 1-2ng Spectropho

Pb Non Biorad 140- 8 2mol <0.2µg L−1 AAS