YSI pHotoFlex Series - Manual (Page 59)

59 ba76126e01 03/2013
Note: Before using the test with your photometer for the first time, determine the reagent blank
value.
YSI model no.: Si-3 TP (HR)
Category: RT (reagent test)
Cell: 28 mm
Measuring range: 1 - 75 mg/l SiO
2
0.5 - 35.1 mg/l Si
Display in mmol/l possible
Pipette 25.0 ml of sample
into the empty cell. Add the contents of a
VARIO Silica HR
Molybdate F25 powder
packet and close the cell
with the screw cap. Mix the contents by
carefully swaying the
cell. Add the contents of a
VARIO Silica HR Acid
Rgt F25 powder packet
and close the cell with
the screw cap. Mix the contents by
carefully swaying the
cell.
Allow to react for 10
minutes. Add the contents of a
VARIO Silica HR Citric
Acid F25 powder packet
and close the cell with
the screw cap. Mix the contents by
carefully swaying the
cell. Allow to react for 2
minutes. Insert the cell in the
photometer cell shaft
and start measurement.
Notes:
• We recommend to determine a new reagent blank value (deionized water instead of sample) for each test package started.
• The temperature of the samples must be in the range 15 ... 25 °C.
10:00 2:00
Silica HR vario
Program no.
337
*RN337*