Test Procedures
BORON
AZOMETHINE-H METHOD • CODE 4868-01
QUANTITY
CONTENTS
CODE
120 mL
*Boron Buff er
*4869-J
10 g
*Boron Indicator Powder
*4870-D
1
Pipet, plastic, 1.0 mL
0354
1
Spoon, 0.15 g
0727
1
Dark Storage Chamber, brown
0108
*WARNING:
Reagents marked with an * are considered to be potential health hazards. To
view or print a Safety Data Sheet (SDS) for these reagents go to www.lamotte.com.
Search for the four digit reagent code number listed on the reagent label, in the contents
list or in the test procedures. Omit any letter that follows or precedes the four digit code
number. For example, if the code is 4450WT-H, search 4450. To obtain a printed copy,
contact LaMotte by email, phone or fax.
Emergency information for all LaMotte reagents is available from Chem-Tel:
(US, 1-800-255-3924) (International, call collect, 813-248-0585).
Small amounts of boron are necessary for plant growth but large amounts can be toxic.
In humans, boron aids in the uptake of calcium and the production of strong bones. An
excess of boron can aff ect the central nervous system resulting in a syndrome known as
borism. Some natural waters may contain small amounts of boron. Large concentrations
may be due to industrial effl
uent entering waterways. Boron compounds are used in
cleaning compounds, paper and paints, fertilizers, glass and ceramics, fi re retardants
and the production of alloys. In the atomic energy fi eld, boron is a component of neutron
shields and nuclear reactors. Some swimming pools use boron buff ering systems.
APPLICATION:
Surface and saline waters, hydroponic solutions, industrial
waste, swimming pools.
RANGE:
0.00–0.80 ppm Boron
MDL:
0.05 ppm
METHOD:
Azomethine-H and borate form a yellow complex at pH 6 in
proportion to the concentration of boron present.
SAMPLE HANDLING &
PRESERVATION:
Store samples in polyethylene bottles. Do not use borate
detergents or glassware.
INTERFERENCES:
Interferences in drinking water are unlikely. Manganese,
zirconium, chromium, titanium, copper, vanadium, aluminum,
beryllium and iron may cause high results.
SMART Spectro 2 Test Procedures 05.02.16
BORON
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