LaMotte SMART Spectro Spectrophotometer - Manual (Page 223)

PROCEDURE
Use universal sample holder.
1. Press and hold
ON button until spectrophotometer turns on.
2. Scroll to and select PROGRAMMED TESTS.
3. Scroll to and select ALL TESTS (or another sequence containing
90 Sulfide-LR
) from TESTING MENU.
4. Scroll to and select 90 Sulfide-LR from menu.
5. Rinse a clean tube (0290) with sample water. Fill to the 10 mL line with
sample.
6. Insert tube into chamber, close lid and select SCAN BLANK.
7. Remove tube from Spectro. Use the 1.0 mL pipet (0354) to add 1.0 mL of
*Sulfide Reagent A (V-4458). Cap and mix.
8. Add 6 drops of Sulfide Reagent B (V-4459). Cap and mix. Wait 1 minute.
Solution will turn blue if sulfides are present.
9. Use the 1.0 mL pipet (0354) to add 2.0 mL of Sulfide Reagent C (4460).
Cap and mix. Color development is immediate and stable.
10. Insert tube into chamber, close lid and select SCAN SAMPLE. Record
result.
11. Press
OFF button to turn spectrophotometer off or press EXIT button to
exit to a previous menu or make another menu selection.
Sulfide 2/2 SMART SPECTRO TEST PROCEDURES 05.04