Hanna Instruments HI 83208 User Manual

Page 48

Nickel LR

NICKEL LOW RANGE

SPECIFICATIONS

Range

0.000 to 1.000 mg/L

Resolution

0.001 mg/L

Accuracy

±0.010 mg/L ±7% of reading at 25 °C

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 nickel and the reagents causes
an orange tint in the sample.

REQUIRED REAGENTS

Code

Description

Quantity

HI 93740A-0

Phthalate-phosphate

2 packets

HI 93740B-0

0.3% PAN indicator

2 mL

HI 93740C-0

EDTA

2 packets

HI 93703-51

Dispersing Agent

4-6 drops (only when necessary, see note)

REAGENT SETS

HI 93740-01 Reagents for 50 tests
HI 93740-03 Reagents for 150 tests
For other accessories see page 73.

MEASUREMENT PROCEDURE

• Select the

Nickel LR 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 one graduated beaker with 25 mL of deionized water

(blank) and another one with 25 mL of sample.

• Add the content of one packet of HI 93740A-0 Phthalate-

phosphate reagent to each beaker. Cap and swirl gently
until the reagent is dissolved.
Note: If sample contains iron (Fe

), it is important that

all powder be dissolved completely before continuing with
following step.

• Add 1 mL of HI 93740B-0 0.3% PAN solution to each

beaker, cap and swirl to mix.