Millipore Spectroquant Multy Operating Manual page 123

Measuring range: 0.08 – 2.00 mg/l F
Check the pH of the Select method 2 2 3 .
sample, specified range:
pH 1 – 10.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Reaction time: Insert the blank cell into
1 minute the cell compartment.
Press Enter to start Align the mark on the
the countdown. cell with that on the pho-
tometer. Press Zero .
Release 08/2014 - Spectroquant
Fluoride
24-mm cell
Pipette 10 ml of the
sample into a 24-mm
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 10 ml of distilled
water (Water for analysis
®
EMSURE , Cat.No.
116754, is recommen-
ded) into a second
24-mm cell.
(Blank cell)
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) ready-for-use fluoride stan-
®
dard solution Certipur , Cat.No. 119814, concentration
–
1000 mg/l F , can be used after diluting accordingly.
100822
Test
Add to each cell 2.0 ml of
F-1 with pipette, close
with the screw cap, and
mix.