Concentration (µg・L−1)

0

0.4

1

2

4

6

8

Iodine 100 µg・L−1 (mL)

0

0.4

1

2

4

6

8

Sodium thiosulfate solution (18.4 mg・L−1) in 2% NH4OH

up to 100 mL

Tellure 125 (1.25 mg・L−1)

500 µL