Iron, (Tptz) With Powder Packs - Orbeco SC450 Guia Del Usuario

Methods
FE 2
Tablet Powder
Zero
Test
FE 2
Tablet Powder
0.0.0
Tablet Powder
Zero
Test
FE 2
Tablet Powder
RESULT
Tablet Powder
Notes:
1. Iron in the sample, including precipitated or suspended iron (e.g. rust) is reduced to Fe
The TPTZ reagent reacts with Fe
2. For determination of total iron a digestion is required (see page 8).
3. Rinse all glassware with 1:1 Hydrochloric acid solution first and then rinse with deionised
water to remove iron deposits that can cause slightly high results.
4. Strong alkaline or acidic water samples must be adjusted between pH 3 and pH 8 before
the reagent is added (use 0.5 mol/l Sulfuric acid resp. 1 mol/l Sodium hydroxide).
Reagent re-order information
Iron Ferro Reagent Powder Pack, 100 ct.
For additional accessories, see page 17
SC450_V1_12/2010
Iron, (TPTZ) with Powder Pack
0.02 – 1.8 mg/l Fe
Use two clean vials (24 mm Ø) and mark one as blank for zeroing.
Fill a clean 24 mm vial with 10 ml deionised water (this is the
blank).
Fill a second clean 24 mm vial with 10 ml of the water sample (this
is the sample).
Add the contents of one IRON TPTZ F10 Powder Pack straight from
the foil into each vial.
Close the vials tightly with the caps and swirl several times to mix the
contents (30 sec.).
Wait for a reaction period of 3 minutes.
(Countdown can be activated, see page 7)
After the reaction period is finished proceed as follows:
Place the vial (the blank) in the sample chamber making sure that the
marks are aligned.
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 8 seconds.
Remove the vial from the sample chamber.
Place the vial (the sample) in the sample chamber making sure that
the marks are aligned.
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 3 seconds.
The result is shown in the display in mg/l Iron.
Tolerance: ± 0.05 mg/l Fe
to a colored complex.
2+
RP055-0
2+ .
11