LaMotte 1200 Colorimeter - Manual (Page 54)

MOLYBDENUM PROCEDURE - Thioglycolate Method
Read the 1200 Colorimeter Manual before proceeding. Carefully
wipe tubes dry before inserting into the colorimeter chamber
MOLYBDENUM
2
8.
Fill the Water
Sample Collecting
Bottle (0688) with
sample water. This
will be used to
dispense sample
water for the tests.
Rinse and fill a
colorimeter
tube (0290) to
the 10 mL line
with sample
water.
Use the 0.05 spoon
(0696) to add 0.05g
of *Molybdenum
Indicator Powder
(6486).
1. 2.
Insert the tube
into the
chamber, being
sure to align the
index line with
the arrow on
the meter.
Close the lid.
This tube is the
sample blank.
6. 5.
Wipe the tube dry.
Use the 1.0 mL
pipet (0354) to
add 1 mL of
*Molybdenum
Oxidizing
Reagent
(6485). Cap
and mix.
4.
Use the 1.0 mL
pipet (0372) to
add 1 mL of *Mo
Buffer (3997).
Cap and mix.
3.
7.
Push the
button to turn the
meter on. Press the
button
and hold it for 2
seconds until
is
displayed. Release
the button to take a
blank reading
(0.0 ppm).
READ
ZERO
bla
I200
COLORIMETER
••••••••••••••••••
READ
ZERO
bla
L Mott