Millipore Spectroquant Multy Operating Manual page 179

Measuring range: 50– 500 mg/l SO
Filter turbid samples. Check the pH of the
sample, specified range:
pH 2 – 10.
If required, add dilute
sodium hydroxide
solution or hydrochloric
acid drop by drop to
adjust the pH.
Add 1 level green micro- Shake the cell vigorous-
spoon of SO -1K and ly to dissolve the solid
4
close the cell with the substance.
screw cap.
Release 08/2014 - Spectroquant
Sulfate
16-mm cell
4
Select method 4 4 1 .
Reaction time:
2 minutes, measure
immediately.
Press Enter to start
the countdown.
®
Multy
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)
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 10, Cat.No. 114676, or the
Standard solution for photometric applications, CRM,
Cat.No. 125051 and 125052.
Ready-for-use sulfate standard solution Certipur
Cat.No. 119813, concentration 1000 mg/l SO
be used after diluting accordingly.
To check for sample-dependent effects the use of addition
solutions (e.g. in CombiCheck 10) is highly recommended.
100617
Cell Test
Pipette 2.0 ml of the
sample into a reaction
cell, close with the screw
cap, and mix.
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
®
,
2–
, can also
4