Millipore Spectroquant Multy Operating Manual page 191

Measuring range: 0.10 – 2.50 mg/l Sn
Check the pH of the Select method 4 9 0 .
sample, specified range:
pH <3 .
If required, add dilute
sulfuric acid drop by
drop to adjust the pH.
Check the pH, specified Reaction time:
range: pH 1.5 – 3.5. 15 minutes
If required, add dilute Press Enter to start
sulfuric acid drop by the countdown.
drop to adjust the pH.
Release 08/2014 - Spectroquant
Tin
16-mm cell
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 blank cell into
the cell compartment.
Press Zero .
®
Multy
Add 6 drops of Sn-1K
into a reaction cell, close
with the screw cap, and
mix.
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) a tin standard solution must
be prepared from ready-for-use tin standard solution
®
Certipur , Cat.No. 170242, concentration 1000 mg/l Sn
(see section "Standard solutions").
114622
Cell Test
Add 5.0 ml of the
sample with pipette,
close with the screw
cap, and mix.