LaMotte 1200-MN User manual

1200 COLORIMETER
MANGANESE
MODEL 1200-MN ·CODE 3682-01
QUANTITY CONTENTS CODE
2 x 100 mL *Hardness Buffer Reagent *4255-J
2 x 30 mL *Manganese Indicator Reagent *3956-G
15 mL *Sodium Cyanide, 10% *6565-E
1 Pipet, 0.5 mL, plastic, w/cap 0369
1 Pipet, 1.0 mL, plastic 0354
6 Colorimeter Tubes, with caps 0290-6
1 Water Sample Collecting Bottle 0688
1 1200 Colorimeter for Manganese 26739
*WARNING: Reagents marked with an * are considered hazardous substances. To view or print a
Material Safety Data Sheet (MSDS) for these reagents see MSDS CD or our web site. To obtain a
printed copy, contact us by e-mail, phone, or fax.
To order individual reagents or test kit components, use the specified code number.
INTRODUCTION
Manganese is present in ground water in the divalent state due to the lack of oxygen. In
surface waters, manganese may be in various oxidation states as soluble complexes or as
suspended compounds. Manganese is rarely present in excess of 1 mg/L. It may cause an
objectionable taste or cause staining problems in laundry, but manganese levels normally
encountered in water seldom produce any health hazard.
Manganese is removed from water by various means including chemical precipitation,
pH adjustment, aeration, superchlorination and the use of ion exchange resins.

MANGANESE TEST PROCEDURE - PAN METHOD
Read the 1200 Colorimeter Manual before proceeding. Carefully
wipe tubes dry before inserting into the colorimeter chamber.
MANGANESE
4. 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
Insert the tube into
the chamber, being
3.
Rinse and fill a
colorimeter tube
(0290) to the
10 mL line with
sample water. Cap
and wipe dry.
2.
Fill the Water
Sample Collecting
Bottle (0688) with
sample water. This
will be used to
dispense sample
water for the tests.
1.
Use the 1.0 mL
pipet (0354) to
add 2.0 mL of
*Hardness Buffer
Reagent (4255).
5. 6. Swirl the tube to mix.
8.
7. Add two drops of
*Sodium Cyanide,
10% (6565).
Swirl the tube to mix.
sure to align
the index line
with the arrow
on the meter.
Close the lid.
This tube is
the blank or
zero.
LMott

If the reading displays Er2, repeat procedure on diluted sample, and multiply the result
by the appropriate dilution factor. See 1200 Colorimeter Instruction Manual for
procedure.
10.9.
Cap tube and invert
to mix.
11. Align the index line with the
arrow on the meter, insert
tube into chamber.
Close the lid. Push
the
button. Record
results as ppm
Manganese.
READ
Note:
For the best possible results, carry a
reagent blank through the
procedure. After scanning the blank
in Step 4, perform the test procedure
on clear, colorless, distilled or
deionized water. Subtract results of
reagent blank from all subsequent
test results.
12.
Use the 0.5 mL
pipet (0369) to
add 0.5 mL of
*Manganese
Indicator Reagent
(3956).
Wipe tube dry.
CAL
I200COLORIMETER
••••••••••••••••••
READ
LMott

MANGANESE TEST METHOD SPECIFICATIONS
APPLICATION
Drinking and surface; domestic and industrial wastewaters.
RANGE
0.0 - 0.7 mg/L Manganese
METHOD
PAN, (1-[2-Pyridylazo]-2-Naphthol), forms a red complex with Manganese (Mn+2)ata
pH of 8 to 10.
HANDLING & PRESERVATION
Manganese may oxidize readily in neutral water and precipitate from solution. It may
adhere to or be absorbed by container walls, especially glass. Acidified sample can be
stored in plastic.
INTERFERENCES
None. Test is quite specific.
LaMOTTE COMPANY
Helping People Solve Analytical Challenges®
PO Box 329 • Chestertown • Maryland • 21620 • USA
800-344-3100 • 410-778-3100 (Outside U.S.A.) • Fax: [phone]
Visit us on the web at www.lamotte.com
63682-01 ·10.04