Millipore Spectroquant Multy Operating Manual page 140

Measuring range: 0.10 – 6.00 mg/l Ni
Check the pH of the Select method 3 1 0 .
sample, specified range:
pH 3 – 8.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Add 2 drops of Ni-1K, Add 2 drops of Ni-2K,
close with the screw close with the screw
cap, and mix. Check the cap, and mix.
pH of the solution, spe-
cified range: pH 10 – 12
Important:
For the determination of total nickel a pretreatment
with Crack Set 10C, Cat.No. 114688, or Crack Set 10,
Cat.No. 114687 and thermoreactor is necessary.
Release 08/2014 - Spectroquant
Nickel
16-mm cell
Fill approx. 10 ml of
distilled water into an
empty 16-mm cell (do
not add any reagents!),
close with the screw
cap.
(Blank cell)
Reaction time:
2 minutes
Press Enter to start
the countdown.
®
Multy
Pipette 5.0 ml of the
sample into a reaction
cell, close with the screw
cap, and mix.
Insert the blank cell into
the cell compartment.
Press Zero .
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) we recommended to use
®
Spectroquant CombiCheck 40, Cat.No. 114692.
A nickel standard solution Titrisol
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.
114554
Cell Test
Reaction time:
1 minute
Press Enter to start
the countdown.
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
®
, Cat.No. 109989, can