Lovibond 00386449 - MD1x0/200 - Iron (TPTZ) PP, Iron PP, Iron T Manuel utilisateur

Taper
Manuel utilisateur
Lovibond® Water Testing
Tintometer® Group
Manual of Methods
MD 100 • MD 110 • MD 200
Iron
EN
Manual of Methods
Page 4
DE
Methodenhandbuch
Seite 22
ES
Manual de Métodos
Página 42
FR
Méthodes Manuel
Page 62
IT
Manuale dei Metodi
Pagina 82
PT
Métodos Manual
Página 102
NL
Handboek Methoden
Zijde 122
ZH
方法手册
Page 142
NL Handboek van Methoden 01/20EN Handbook of Methods 01/20
KS4.3 T
0.1 - 4 mmol/l KS4.3
Acid / Indicator
20
S:4.3
Instrument specific information
The test can be performed on the following devices. In addition, the required cuvette
and the absorption range of the photometer are indicated.
Instrument Type Cuvette λMeasuring Range
MD 200, MD 600, MD 610,
MD 640, MultiDirect, PM 620,
PM 630
ø 24 mm 610 nm 0.1 - 4 mmol/l KS4.3
SpectroDirect, XD 7000,
XD 7500
ø 24 mm 615 nm 0.1 - 4 mmol/l KS4.3
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
Alka-M-Photometer Tablet / 100 513210BT
Alka-M-Photometer Tablet / 250 513211BT
Application List
Waste Water Treatment
Drinking Water Treatment
Raw Water Treatment
Notes
1. The terms Alkalinity-m, m-Value, total alkalinity and Acid demand to KS4.3 are iden-
tical.
2. For accurate results, exactly 10 ml of water sample must be used for the test.
Display in the MD
100 / MD 110 /
MD 200
Bar code for the
detection of the
methods
Method name
Measuring range
Chemical Method
Method number
Language codes
ISO 639-1 Revision status
KS4.3 T / 20
How to use
ENMethod Reference Book4
EN
Implementation of the provision Acid capacity KS4.3 with Tablet
Select the method on the device
For this method, no ZERO measurements are to be carried out with the following de-
vices: XD 7000, XD 7500
10 ml
Fill 24 mm vial with 10 ml
sample.
Close vial(s).
Sample
Place sample vial in the
sample chamber. • Pay
attention to the positioning.
Dissolve tablet(s) by inver-
ting.
Sample
Place sample vial in the
sample chamber. • Pay
attention to the positioning.
Test
Press the TEST (XD:
START) button.
The result in Acid Capacity KS4.3 appears on the display.
Performing test
procedure
KS4.3 T / 20
NL Handboek van Methoden 01/20EN Handbook of Methods 01/20
How to use
ENMethod Reference Book 5
EN
Iron T / M220
ENMethod Reference Book1.06
EN
Iron T M220
0.02 - 1 mg/L Fe FE
Ferrozine / Thioglycolate
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
Iron II LR (Fe2+) Tablet / 100 515420BT
Iron II LR (Fe2+) Tablet / 250 515421BT
Iron LR (Fe2+ und Fe3+) Tablet / 100 515370BT
Iron LR (Fe2+ und Fe3+) Tablet / 250 515371BT
Preparation
1. Water that has been treated with organic compounds such as corrosion inhibitors,
must be oxidised where necessary to break down the iron complex. 1 ml of
concentrated Sulphuric acid(≥ 95 %) and 1 ml concentrated Nitric acid(≥ 65 %) is
therefore added to to 100 ml water sample and boiled down to approximately half
the volume. After cooling down, the digestion procedure is continued.
Remarks
1. This method is for the determination of total dissolved Fe2+ and Fe3+.
2. For the determination of Fe2+, the IRON (II) LR Tablet, instead of the IRON LR
Tablet is used.
Iron T / M220
ENMethod Reference Book1.0 7
EN
Digestion
100 mL 1 mL
9
4
5
6
7
8
10
11 12
1
2
3
10 min
Fill a suitable sample
vessel with 100 mL
sample .
Add 1 mL concentrated
sulfuric acid (≥ 95 %) .
The sample is to be heated
for 10 minutes, or for
as long as it takes for
everything to be completely
dissolved.
25 ºC
15 ºC
100 mL
Allow the sample to cool to
room temperature.
Adjust pH-value of the
sample with ammonia
solution (10-25 %) to 3-5.
Fill the sample with
deionised water to 100 mL
.
This sample is used for the analysis of total solved and dissolved Iron.
Determination of Iron (II,III), dissolved with Tablet
Select the method on the device.
For testing of dissolved and undissolved Iron, carry out the described digestion.
10 mL
Sample
Fill 24 mm vial with 10 mL
sample.
Close vial(s). Place sample vial in the
sample chamber. Pay
attention to the positioning.
Iron T / M220
ENMethod Reference Book1.08
EN
Zero
Press the ZERO button. Remove the vial from the
sample chamber.
24 mm
Add IRON LR tablet. Crush tablet(s) by rotating
slightly.
Close vial(s).
Sample
Test
Dissolve tablet(s) by
inverting.
Place sample vial in the
sample chamber. Pay
attention to the positioning.
Press the TEST (XD:
START)button.
Iron T / M220
ENMethod Reference Book1.0 9
EN
9
4
5
6
7
8
10
11 12
1
2
3
5 min
Wait for 5 minute(s)
reaction time.
Once the reaction period is finished, the measurement takes place automatically.
The result in mg/L Iron appears on the display.
Iron T / M220
ENMethod Reference Book1.010
EN
Chemical Method
Ferrozine / Thioglycolate
Appendix
Interferences
Removeable Interferences
1. The presence of copper increases the test result by 10 %. At a concentration of 10
mg/L copper in the sample, the measurement result is increased by 1 mg/L iron.
The interference can be eliminated by the addition of thiourea
Method Validation
Limit of Detection 0.01 mg/L
Limit of Quantification 0.016 mg/L
End of Measuring Range 1 mg/L
Sensitivity 0.92 mg/L / Abs
Confidence Intervall 0.013 mg/L
Standard Deviation 0.005 mg/L
Variation Coefficient 1.23 %
Bibliography
Photometrische Analyse, Lange/ Vjedelek, Verlag Chemie 1980, p. 102
Iron PP / M222
ENMethod Reference Book1.012
EN
Iron PP M222
0.02 - 3 mg/L Feg) FE1
1,10-Phenanthroline
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
VARIO Ferro F10 Powder /
100 Pieces
530560
VARIO Ferro F10 Powder /
1000 Pieces
530563
Preparation
1. Iron oxide requires mild, strong or Digesdahl digestion before the analysis (digestion
process with acid).
2. Very strong alkaline or acidic water samples should be adjusted to between pH 3
and pH 5 before the analysis.
3. Water samples containing visible rust should be allowed to react for at least five
minutes.
4. Water that has been treated with organic compounds such as corrosion inhibitors,
must be oxidised where necessary to break down the iron complex. 1 ml of
concentrated Sulphuric acid (≥ 95 %) and 1 ml concentrated Nitric acid (≥ 65 %) is
therefore added to to 100 ml water sample and boiled down to approximately half
the volume. After cooling down, the digestion procedure is continued.
Remarks
1. This method is for the determination of all forms of dissolved iron and most forms of
undissolved iron.
2. Accuracy is not affected by undissolved powder.
Iron PP / M222
ENMethod Reference Book1.0 13
EN
Digestion
100 mL 1 mL
9
4
5
6
7
8
10
11 12
1
2
3
10 min
Fill a suitable sample
vessel with 100 mL
sample .
Add 1 mL concentrated
sulfuric acid (≥ 95 %) .
The sample is to be heated
for 10 minutes, or for
as long as it takes for
everything to be completely
dissolved.
25 ºC
15 ºC
100 mL
Allow the sample to cool to
room temperature.
Adjust pH-value of the
sample with ammonia
solution (10-25 %) to 3-5.
Fill the sample with
deionised water to 100 mL
.
This sample is used for the analysis of total solved and dissolved Iron.
Determination of Iron (II,III), dissolved with Vario Powder Packs
Select the method on the device.
For testing of Iron with tablet, carry out the described digestion.
10 mL
Sample
Fill 24 mm vial with 10 mL
sample.
Close vial(s). Place sample vial in the
sample chamber. Pay
attention to the positioning.
Iron PP / M222
ENMethod Reference Book1.014
EN
Zero
Press the ZERO button. Remove the vial from the
sample chamber.
Sample
Add Vario FERRO
F10 powder pack.
Close vial(s). Invert several times to mix
the contents.
Sample
Test
9
4
5
6
7
8
10
11 12
1
2
3
3 min
Place sample vial in the
sample chamber. Pay
attention to the positioning.
Press the TEST (XD:
START)button.
Wait for 3 minute(s)
reaction time.
Once the reaction period is finished, the measurement takes place automatically.
The result in mg/L Iron appears on the display.
Iron PP / M222
ENMethod Reference Book1.0 15
EN
Chemical Method
1,10-Phenanthroline
Appendix
Interferences
Persistant Interferences
1. Iridium interferes with the test.
According to
DIN 38406-E1
Standard Method 3500-Fe-1997
US EPA 40 CFR 136
g) Reagent recovers most insoluble iron oxides without digestion
Iron (TPTZ) PP / M223
ENMethod Reference Book1.016
EN
Iron (TPTZ) PP M223
0.02 - 1.8 mg/L Fe FE2
TPTZ
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
VARIO Iron TPTZ F10 Powder /
100 Pieces
530550
Preparation
1. Digestion is required for the determination of total Iron. The TPTZ reagent recovers
most iron oxides without digestion.
2. All glassware must first be rinsed with diluted 1:1 Hydrochloric acid solution before
the analysis and then rinsed with deionised water to remove iron deposits that can
cause slightly high results.
3. Strong alkaline or acidic water samples should be adjusted between pH 3 and pH 8
before the analysis (use 0.5 mol/l Sulphuric acid or 1 mol/l Sodium hydroxide).
4. Water that has been treated with organic compounds such as corrosion inhibitors,
must be oxidised where necessary to break down the iron complex. 1 ml of
concentrated Sulphuric acid (≥ 95 %) and 1 ml concentrated Nitric acid (≥ 65 %) is
therefore added to to 100 ml water sample and boiled down to approximately half
the volume. After cooling down, the digestion procedure is continued.
Iron (TPTZ) PP / M223
ENMethod Reference Book1.0 17
EN
Digestion
100 mL 1 mL
9
4
5
6
7
8
10
11 12
1
2
3
10 min
Fill a suitable sample
vessel with 100 mL
sample .
Add 1 mL concentrated
sulfuric acid (≥ 95 %) .
The sample is to be heated
for 10 minutes, or for
as long as it takes for
everything to be completely
dissolved.
25 ºC
15 ºC
100 mL
Allow the sample to cool to
room temperature.
Adjust pH-value of the
sample with ammonia
solution (10-25 %) to 3-5.
Fill the sample with
deionised water to 100 mL
.
This sample is used for the analysis of total solved and dissolved Iron.
Determination of Iron, total with Vario Powder Pack
Select the method on the device.
For testing of total Iron, carry out the described digestion.
Blank
Blank
10 mL
Sample
10 mL
Prepare two clean 24 mm
vials. Mark one as a blank.
Put 10 mL deionised
water in the blank.
Put 10 mL sample in the
sample vial.
Iron (TPTZ) PP / M223
ENMethod Reference Book1.018
EN
SampleBlank
30 sec.
Add a Vario IRON TPTZ
F10 powder pack in each
vial.
Close vial(s). Mix the contents by shaking.
(30 sec.).
9
4
5
6
7
8
10
11 12
1
2
3
3 min
Blank
Press the ENTER button. Wait for 3 minute(s)
reaction time.
Place blank in the sample
chamber. Pay attention to
the positioning.
Zero
Sample
Press the ZERO button. Remove the vial from the
sample chamber.
Place sample vial in the
sample chamber. Pay
attention to the positioning.
Iron (TPTZ) PP / M223
ENMethod Reference Book1.0 19
EN
Test
Press the TEST (XD:
START)button.
The result in mg/L Iron appears on the display.
Iron (TPTZ) PP / M223
ENMethod Reference Book1.020
EN
Chemical Method
TPTZ
Appendix
Interferences
Persistant Interferences
When interferences occur, colour development is inhibited or a precipitate is formed. The
values refer to a standard with an iron concentration of 0.5 mg/L.
Interference from / [mg/L]
Ca 4
Cr3+ 0.25
Cr4+ 1.2
Co 0.05
Cu 0.6
CN-2.8
Mn 50
Hg 0.4
Mo 4
Ni 1
NO2 -0.8
Bibliography
G. Frederic Smith Chemical Co., The Iron Reagents, 3rd ed. (1980)
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Lovibond 00386449 - MD1x0/200 - Iron (TPTZ) PP, Iron PP, Iron T Manuel utilisateur

Taper
Manuel utilisateur