Check the pH, specified
range:
pH 10 – 12.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Pipette 5.0 ml of the
sample into a test tube.
Measuring 0.10 – 5.00 mg/l Ni 10-mm cell
range: 0.05 – 2.50 mg/l Ni 20-mm cell
0.02 – 1.00 mg/l Ni 50-mm cell
Expression of results also possible in mmol/l.
Nickel
114785
Test
Reaction time:
1 minute
Transfer the solution into
a corresponding cell.
Select method with
AutoSelector.
Place the cell into the
cell compartment.
Important:
For the determination of total nickel a pretreatment
with Cr
ack Set 10C, Cat.No. 114688, or Crack Set 10,
Cat.No. 114687 and thermoreactor is necessary.
Result can be expressed as sum of nickel (
Ni).
To measure in the 50-mm cell, the sample volume and
the volume of the reagents have to be doubled for each.
Alternatively, the semi-microcell, Cat.No. 173502, can be
used.
Add 2 drops of Ni-2
and mix.
Add 2 drops of Ni-3
and mix.
Reaction time:
2 minutes
Add 1 drop of Ni-1 and
mix. If the color disap-
pears, continue adding
drop by drop until a slight
yellow coloration persists.
Quality assurance:
To check the measurement system (test reagents,
measurement device, and handling) w
e recommended
to use Spectroquant
®
CombiCheck 40, Cat.No. 114692.
A nickel standard solution Titrisol
®
, Cat.No. 109989, can
also be used after diluting accordingly.
To check for sample-dependent effects the use of addition
solutions (e.g. in CombiCheck 40) is highly recommended.
Check the pH of the
sample, specified range:
pH 3– 8.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
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