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Test Procedures
NICKEL
DIMETHYLGLYOXIME METHOD • CODE 3663-01-SC
QUANTITY
CONTENTS
CODE
60 mL
* Hydrochloric Acid, 2.5N
*6251PS-H
30 g
* Ammonium Persulfate Reagent
*6566-G
30 mL
* Silver Nitrate Solution, 0.0141N
*6346WT-G
250 mL
Sodium Citrate, 10%
6253-K
60 mL
* Dimethylglyoxime, 1%
*6254-H
60 mL
* Ammonium Hydroxide, Conc.
*6537-H
3
Pipets, 1.0 mL, plastic
0354
1
Spoon, 0.1 g, plastic
0699
1
Test tube, 5-10-12.9-15-20-25, glass, w/cap
0608
1
Graduated Cylinder, 10 mL, glass
0416
*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).
Nickel is not usually found in natural waters except as a result of contamination from
industrial wastewaters as a corrosion product of stainless steel and nickel alloys. Nickel
may also enter surface waters from plating bath process water.
APPLICATION:
Drinking and surface waters; domestic and industrial
wastewaters.
RANGE:
0.00–8.00 ppm Nickel
MDL:
0.06 ppm
METHOD:
Nickel under basic conditions forms a colored complex with
dimethylglyoxime in proportion to the concentration of nickel.
SAMPLE HANDLING &
PRESERVATION:
Samples may be collected in either plastic or glass containers
and preserved by adding 5 mL of concentrated nitric acid per
liter.
INTERFERENCES:
Organic matter interferes. Cobalt, iron, copper, manganese
and chromium do not interfere if each of the concentrations
is below 15 ppm.
SMART Spectro 2 Test Procedures 05.02.16
NICKEL
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