Analytical techniques, Nitrite nitrogen – LaMotte DIAGRAM FOR AQ-3 User Manual

Page 4

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ANALYTICAL TECHNIQUES

NITRITE NITROGEN

REAGENTS AND APPARATUS

DE SCRIP TION

CODE

*Mixed Acid Re agent *V-6278-H

*Color De veloping Re agent *V-6281-D

Spoon, 0.1 g, plas tic 0699

Dis penser Cap 0692

Test Tube, plas tic, 2.5, 5.0 & 10.0 mL, w/cap 0106

Octa-Slide Viewer 1100

Ni trite Ni tro gen Octa-Slide Bar, 0.05-0.8 ppm 3437

*WARNING: Reagents marked with a * are considered hazardous substances.
Material Safety Data Sheets (MSDS) are supplied for these reagents. For your
safety, read label and accompanying MSDS before using.
NOTE:

Place Dispenser Cap (0692) on *Mixed Acid Reagent (V-6278).
Save this cap for refill reagents.

4

29

the enclosed

screwcap pipet

assemblies, remove

polyseal cap on bottle

and replace with

screwcap pipet
NOTE: Make sure

caps are clean.

Replace polyseal cap

bottles fitted with

dropper plug and cap,

be sure to hold bottle

vertically and gently

squeeze to dispense

the appropriate

number of
Uniform drops.

When dispensing

reagents from

Clean glassware is a

must for accurate

results. Thoroughly

rinse test tubes, caps,

and stoppers before

and after each use.

Use test tube

caps or

stoppers, not

your fingers,

to cover tubes

during

shaking or

mixing.

When adding

sample to

For those reagents

to be added with

When dispensing

reagents, hold pipet

vertically to assure

uniform drop size.

X

To accurately

dispense

To fill pipets,

squeeze

rubber bulb

and immerse

into reagent.

Release bulb

to fill.

1.

2.

3.

4.

5.

calibrated test tubes,

be sure tube is filled to

the appropriate

mark. The

bottom of the

liquid

(meniscus)

should be level

with the desired mark.

6.

7.

8.

powdered

reagents with

spoon, tap

spoon on vial

to remove

excess reagent.

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