Add 1 level grey micro-
spoon of Zn-5, close the
test tube with the screw
cap, and dissolve the
solid substance.
Add 5.0 ml of Zn-6
(Cat.No. 106146, Isobutyl-
methylketone) with pipette
and close the test tube
with the screw cap.
Check the pH, specified
range
:
pH 12 –13.
If required, add dilute
sodium hydroxide
solution drop by drop
to adjust the pH.
Pipette 5.0 ml of the
sample into a test tube
with screw cap.
Add 5 drops of Zn-1,
close the test tube with
the screw cap, and mix.
Measuring 0.05 – 2.50 mg/l Zn 10-mm cell
range: Expression of results also possible in mmol/l.
Zinc
114832
Test
Reaction time:
3 minutes
Leave to stand for
2 minutes.
Shake the tube vigorous-
ly for 30 seconds.
Add 2 drops of Zn-2,
close the test tube with
the screw cap, and mix.
Add 5 drops of Zn-3,
close the test tube with
the screw cap, and mix.
Add 3 drops of Zn-4,
close the test tube with
the screw cap, and mix.
Quality assurance:
To check the measurement system (test reagents,
measurement device, and handling) ready-f
or-use zinc
standard solution
Certipur
®
, Cat.No. 119806, concentration
1000 mg/l Zn, can be used after diluting accordingly.
Important:
For the determination of total zinc a pretreatment
with Crack Set 1
0C, Cat.No. 114688, or Crack Set 10,
Cat.No. 114687, and thermoreactor is necessary.
Result can be expressed as sum of zinc ( Zn).
Check the pH of the
sample, specified range
:
pH 4– 10.
If required, add dilute
sodium hydroxide
solution or hydrochloric
acid drop by drop to
adjust the pH.
Leave to stand for
3 minutes.
Select method with
AutoSelector.
Place the cell into the
cell compartment.
Transfer the solution into
a cell.
Aspirate the clear upper
phase from the tube with
pipette.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
To Next Page
Loading...