LaMotte 1200 Bedienungsanleitung

1200 COLORIMETER

IRON

MODEL 1200-FE ·3681-01

QUANTITY CONTENTS CODE

2 x 15 mL *Acid Phenanthroline Indicator *2776-E

2x5g *IronReducingReagent *2777-C

1 Colorimeter Tubes, with caps, set of 6 0290-6

1 Spoon, 0.1 g, plastic 0699

1 Water Sample Collecting Bottle 0688

1 1200 Colorimeter for Iron 26738

*WARNING: Reagents marked with a * are considered to be potential health hazards. To view

or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD or

www.lamotte.com. To obtain a printed copy, contact LaMotte by email, phone or fax.

To order individual reagents or test kit components, use the specified code number.

INTRODUCTION

Most natural waters contain some iron. The concentration may vary from small traces to

very large amounts in water which is contaminated by acid mine wastes. For domestic

use, the concentration should not exceed 0.2 ppm and for some industrial applications

not even a trace of iron can be tolerated. There are many means available for removing

or reducing the iron content. Water softening resins are effective for removing small

amounts of iron and special ion exchange materials are selective for iron removal. High

concentrations of iron can be removed by such chemical processes as oxidation and lime

or lime-soda softening. Because of the many means of removing or reducing the amount

of iron in water, the particular method employed will depend largely on the form of iron

which is present and the end use of the treated water.

IRON TEST PROCEDURE - 1,10 PHENANTHROLINE METHOD

Read the 1200 Colorimeter Manual before proceeding. Carefully

wipe tubes dry before inserting into the colorimeter chamber.

IRON

Fill the Water

Sample Collecting

Bottle (0688) with

sample water. This

will be used to

dispense sample

water for the tests.

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

blankorzero.

Rinse and fill a

colorimeter tube

(0290) to the 10

mL line with

sample water.

Cap and wipe

dry.

1. 2.

I200 COLORIMETER

••••••••••••••••••

READ

bla

ZERO

Cap and invert the

tube 15 times to

mix.

Push the

button to turn the

meter on. Press the

button

andholditfor2

seconds until is

displayed. Release

the button to take a

zero reading

(0.00 ppm).

READ

ZERO

bla

Remove tube from

colorimeter. Use the

0.1 g spoon (0699) to

add one measure of

*Iron Reducing

Reagent (2777).

7. Remove the cap and

add 6 drops of *Acid

Phenanthroline

Indicator (2776).

Cap and invert the

tube 3 times to mix

reagents.

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.

9. 10.

Wait 5 minutes for full

color development.

Solution will turn orange

if iron is present.

Wipe tube dry.

11. Align the index line with the

arrow on the meter, insert

CAL

I200COLORIMETER

••••••••••••••••••

READ

tube into chamber.

Close the lid. Push

the

button. Record

results as ppm Iron.

READ

MINUTES

LMott

IRON TEST METHOD SPECIFICATIONS

APPLICATION

Drinking , surface, and saline waters; domestic and industrial wastes.

RANGE

0to4.0ppmIron

METHOD

Ferric iron is reduced to ferrous iron and subsequently forms a colored complex with

phenanthroline for a quantitative measure of total iron.

HANDLING & PRESERVATION

The sample container should be cleaned with acid and rinsed with deionized water.

Addition of acid to adjust the sample to pH 2 - 3 will prevent deposition of iron on the

container walls. Samples should be analyzed as soon as possible after collection since

ferrous iron undergoes oxidation to ferric iron.

INTERFERENCES

Strong oxidizing agents, cyanide, nitrite, phosphates, chromium, and zinc in

concentrations exceeding 10 times that of iron; cobalt and copper in excess of 5 mg/L,

and nickel in excess of 2 mg/L. Bismuth, cadmium, mercury, molybdate, and silver

precipitate phenanthroline.

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 410-778-6394

Visit us on the web at www.lamotte.com

63681-01 ·4/09

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