Thermo Scientific Orion AquaMate UV-Vis, Руководство пользователя

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Chapter 5
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Orion AQUAfast Reagent Chemistry Instructions for Orion AquaMate
Thermo Scientific Orion AquaMate Spectrophotometer User Manual | 49
AC2002 Alkalinity-M (Alkalinity to pH 4.3) Tablet Test
Acid/Indicator Method
5 – 200 mg/l CaCO
3
1. Load and run the AC2002 method.
2. Fill a clean AQUAfast 24mm round vial, Cat. No. AC2V24, with 10 ml of sample. Close the
vial tightly with the cap. Wipe the exterior of the vial.
3. Place the vial into the holder in the sample chamber and close the chamber door.
4. Press the Measure Blank function key to measure the blank.
5. Open the sample chamber door and remove the vial from the holder.
6. Add one Alka-M Tablet straight from the foil into the vial. Crush the tablet with a clean stir
rod.
7. Close the vial tightly with the cap and swirl or invert several times until the tablet is
dissolved. Wipe the exterior of the vial.
8. Place the vial into the holder in the sample chamber and close the chamber door.
9. Press the Measure Sample function key to display the result in mg/l total alkalinity.
Notes:
•
The terms total alkalinity, alkalinity-m, m-value and alkalinity to pH 4.3 are identical.
• For accurate results, exactly 10 ml of water sample must be taken for the test.