Millipore Spectroquant Multy Operating Manual page 181

Measuring range: 1.0– 25.0 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 to the second cell Add to each cell 1 level
10 ml of distilled water green microspoon of
with pipette, close with SO
the screw cap, and mix. with the screw cap.
(Blank cell)
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
Release 08/2014 - Spectroquant
Sulfate
24-mm cell
4
Select method 4 4 3 .
Shake both cells vigor-
ously to dissolve the
-2, close the cell solid substance.
4
®
Multy
Pipette 0.50 ml each of
SO -1 into two 24-mm
4
cells.
Reaction time:
2 minutes, measure
immediately.
Press Enter to start
the countdown.
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) ready-for-use sulfate
®
standard solution Certipur , Cat.No. 119813, concen-
2-
tration 1000 mg/l SO , can be used after diluting accord-
4
ingly.
101812
Test
Add to one cell 10 ml of
the sample with pipette,
close with the screw cap,
and mix.
Insert the blank cell into
the cell compartment.
Align the mark on the
cell with that on the pho-
tometer. Press Zero .