beautypg.com

Phosphate, acid hydrolyzable, Po4-4 tc, 06 - 3.50 mg/l po – YSI pHotoFlex Series User Manual

Page 53: 16 mm, Rn336, 00 phosphate, acid hydrolyzable

background image

53

ba76126e01

03/2013

Note: Before using the test with your photometer for the first time, determine the reagent blank
value.

YSI model no.:

PO4-4 TC

Category:

KT (reaction cell test)

Cell:

16 mm

Measuring range:

0.06 - 3.50 mg/l PO

4

0.020 - 1.141 mg/l PO

4

-P

Display in mmol/l possible

Pipette 5 ml of sample
into a reaction cell and
close the cell with the
screw cap.

Heat the cell in the
thermoreactor for 30
minutes at 120 °C.

Remove the cell from the
thermoreactor and let it
cool down in a cell rack.

With a pipette add 2.0 ml
Vario Sodium
hydroxide 1.00 N
, close
the cell with the screw
cap and mix.

Add the contents of a
Vario Phosphate RGT
F10 ml
powder packet
and close the cell with
the screw cap.

Shake the cell for 10-
15 s. A small amount of
solid matter remains
undissolved.

Allow to react for 2
minutes.

Within 8 minutes after
the last reagent was
added:
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.

Clean all laboratory glassware with hydrochloric acid (approx. 20 %), then thoroughly rinse with deionized water. Do not
used any detergents that contain phosphate!

2:00

Phosphate, acid hydrolyzable

Program no.

336

*RN336*