Millipore Spectroquant Multy Operating Manual page 146

Measuring range: 10 – 700 µg/l NO
33 – 2299 µg/l NO
Check the pH of the Select method 3 3 0 .
sample, specified range:
pH 2 – 10.
If required, add dilute
sulfuric acid drop by
drop to adjust the pH.
Reaction time: Insert the blank cell into
10 minutes the cell compartment.
Press Enter to start Press Zero .
the countdown.
Release 08/2014 - Spectroquant
Nitrite
-N 16-mm cell
2
16-mm cell
2
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 cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
®
Multy
Pipette 5.0 ml of the
sample into a reaction
cell, close with the
screw cap.
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) ready-for-use nitrite stan-
®
dard solution Certipur , Cat.No. 119899, concentration
–
1000 mg/l NO , can be used after diluting accordingly as
2
well as the Standard solution for photometric applications,
CRM, Cat.No. 125041.
114547
Cell Test
Shake the cell vigor-
ously to dissolve the
solid substance.