Millipore Spectroquant Multy Operating Manual page 182

Measuring range: 5 – 300 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 5.0 ml of the sample Add 1 level blue micro-
with pipette, close with spoon of SO
the screw cap, and mix. se the cell with the
screw cap.
Insert the cell containing
the sample into the cell
compartment. Press
Test .
Release 08/2014 - Spectroquant
Sulfate
16-mm cell
4
Select method 4 4 5 .
Shake the cell vigorous-
-2 and clo- ly to dissolve the solid
4
substance.
®
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)
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) we recommended to use
®
Spectroquant CombiCheck 10, Cat.No. 114676, or the
Standard solution for photometric applications, CRM,
Cat.No. 125050 and 125051.
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.
102537
Test
Pipette 0.50 ml of SO -1
4
into a 16-mm cell.
Insert the blank cell into
the cell compartment.
Press Zero .
®
,
2–
, can also
4