114557
Cell Test
Measuring range: 0.10 – 1.50 mg/l F
16-mm cell
Fluoride
Swirl both cells before
measurement.
Pipette 5.0 ml of the
sample into a reaction
cell, close with the screw
cap, and mix.
Add to each cell1 dose
of F-1K using the blue
dose-metering cap,
close with the screw cap.
Shake both cells vigor-
ously to dissolve the
solid substance.
Pipette 5.0 ml of distilled
water into a second
reaction cell, close with
the screw cap, and mix.
(Blank cell)
Select method 2 2 0 .
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
Reaction time:
5 minutes
Press Enter to start
the countdown.
Check the pH of the
sample, specified range:
pH 3 – 8.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
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.
Important:
Very high fluoride concentrations in the sample produce
brown-colored solutions (measurement solution should be
violet) and false-low readings are yielded. In such cases
the sample must be diluted (plausibility check).
Insert the blank cell into
the cell compartment.
Align the mark on the
cell with that on the pho-
tometer. Press Zero .
Release 08/2014 - Spectroquant
®
Multy
