Hanna Instruments HI 83208-2008 User Manual

Page 34

Silver

• Add exactly 1.0 mL of HI 93737B-0 Buffer reagent to the second beaker

(the sample) and swirl gently to mix.

• Press TIMER and the display will show the countdown prior to adding reagent C or, alternatively, wait

for 2 minutes. Then add exactly 1.0 mL of HI 93737C-0 Indicator reagent to each beaker and swirl.

• Press TIMER or, alternatively, wait for 2 minutes. Then add 1.0 mL of HI 93737D-0 Fixing reagent to

each beaker and swirl.

• Then press TIMER or, alternatively, wait for 2 minutes to allow reaction to complete.

• Fill one cuvette up to the mark with 10 mL of the blank.

• Place the cuvette into the holder and close the lid.

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10 mL

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10 mL

Silver

SILVER

SPECIFICATIONS

Range

0.000 to 1.000 mg/L

Resolution

0.001 mg/L

Accuracy

±0.005 mg/L ±10% of reading

Typical EMC

± 0.001 mg/L

Deviation

Light Source

Tungsten lamp with narrow band interference filter @ 575 nm.

Method

Adaptation of the PAN method. The reaction between silver and reagents causes an

orange tint in the sample.

REQUIRED REAGENTS

Code

Description

Quantity

HI 93737A-0

Buffer Reagent A

1 mL

HI 93737B-0

Buffer Reagent B

1 mL

HI 93737C-0

Indicator Reagent C 2 mL

HI 93737D-0

Fixing Reagent D

2 mL

HI 93703-51

Dispersing Agent

4-6 drops

(only when necessary, see note)

REAGENT SETS

HI 93737-01 Reagents for 50 tests
HI 93737-03 Reagents for 150 tests
For other accessories see page 73.

MEASUREMENT PROCEDURE

• Select the

Silver method using the procedure described in the

Method Selection section (see page 12).
Note: for best results perform your tests between 20-24°C.

• Fill two graduated beakers with 25 mL of sample.

• Add 1.0 mL of HI 93737A-0 Buffer reagent to one beaker (the

blank) and swirl gently to mix.

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# 2

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