LaMotte MOLYBDENUM 1200 COLORIMETER - Manual (Page 2)

MOLYBDENUM PROCEDURE - Thioglycolate Method
Read the 1200 Colorimeter Manual before proceeding. Carefully wipe tubes dry
before inserting into the colorimeter chamber
MOLYBDENUM
Fill theWater Sample
Collecting Bottle
(0688) with sample
water. This will be
used to dispense
sample water for the
tests.
Rinse and fi ll a
colorimeter tube
(0290) to the
10mL line with
sample water.
Use the 1.0 mL pipet
(0354) to add 1mL
of *Molybdenum
Oxidizing Reagent
(6485). Cap and mix. Use the 1.0 mL pipet
(0372) to add1mLof
*Mo Buffer (3997).
Cap and mix.
Wipe the tube dry.
Insert the tube into the
chamber, being sure
to align the index line
with the arrow
on themeter.
Close the lid.
This tube is the
sample blank.
Push the READ
button to turn the
meter on. Press
the ZERO button
and hold it for 2
seconds until is
displayed. Release
the button to take
a blank reading
(0.0 ppm).
Use the 0.05 spoon
(0696) to add 0.05g of
*Molybdenum Indicator
Powder (6486).
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