LaMotte MOLYBDENUM KIT User Manual

MOLYBDENUM

1200 COLORIMETER, 0-30 ppm

CODE 3676-01

QUANTITY CONTENTS CODE

60 mL *Mo Buffer *3997-H
2 x 30 mL *Molybdenum Oxidizing Reagent *6485-G

2.5 g *Molybdenum Indicator Powder *6486-S
1 Colorimeter Tubes 10 mL, w/cap, set of 6 0290-6
1 Spoon, 0.05g, plastic 0696
1 Pipets, 1.0 mL, plastic, w/cap 0372
1 Pipet, 1.0 mL 0354
1 Water Sample Collecting Bottle 0688
1 1200 Colorimeter for Molybdenum 26729

*WARNING: Reagents marked with an * are considered to be potential health hazards.
To view or print a Material Safety Data Sheet (MSDS) for these reagents go to
www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.

To order individual reagents or test kit components, use the specifi ed code number.
NOTE: After use, return *MO Buffer (3997) to zipper top storage bag to reduce

exposure to corrosive reagent.

INTRODUCTION

Molybdenum occurs naturally in the earth’s crust as molybdenite and wolfenite, and
is an important element in many biochemical reactions, including nitrogen fi xation. In
industrial processes, such as the operation of boilers and cooling towers, molybdenum,
in the form of sodium molybdate, is used as an environmentally safe corrosion
inhibitor.

MOLYBDENUM PROCEDURE - Thioglycolate Method

Read the 1200 Colorimeter Manual before proceeding. Carefully wipe tubes dry
before inserting into the colorimeter chamber

MOLYBDENUM

12

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.

34

Use the 1.0 mL pipet
(0372) to add1mLof
*Mo Buffer (3997).
Cap and mix.

Use the 1.0 mL pipet
(0354) to add 1mL
of *Molybdenum
Oxidizing Reagent
(6485). Cap and mix.

5

Wipe the tube dry.

7

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).

6

8

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.

Use the 0.05 spoon
(0696) to add 0.05g of
*Molybdenum Indicator
Powder (6486).