Reflectoquant® Iron Test Strips, Catalog No. 16983/1
1. Method
In acidic solution, Fe2+ ions react
with 2,2'-bypyridine to form a red complex, the concentration of which
is determined reflectometrically.
2. Measuring Range and Number of Determinations
| Measuring range1) |
Number of Determinations |
| 20 - 200mg/l Fe2+ |
50 |
1)for measurement of concentrations >
200mg/l Fe2+ see section 6
3. Applications
This test measures only Fe2+ ions.
Fe3+ ions must be reduced prior to the determination (see
section 7, "Notes").
Sample Material:
Surface water Industrial water Wastewater Mineral water
Food and food preserves (e.g. juices, wine, preserve liquids)
4. Influence of Foreign Substances
This was checked - in the case of interfering
ions up to concentrations of 1,000mg/l - in solutions containing 50mg/l and 0mg/l Fe2+. The concentrations of foreign
substances given in the table lie below the limit at which the
determination is interfered with:
Concentrations of Foreign Substances inmg/l
or %
| Ag+ |
1,000 |
Mn2+ |
1,000 |
Anionic Surfactants1) |
1,000 |
| Al3+ |
1,000 |
NH4+ |
1,000 |
Cationic Surfactants2) |
1,000 |
| BO33- |
1,000 |
Ni2+ |
100 |
Nonionic Surfactants3) |
1,000 |
| Ca2+ |
1,000 |
NO2- |
100 |
NaCl |
10% |
| Cd2+ |
1,000 |
NO3- |
1,000 |
Na2SO4 |
10% |
| Citrate |
1,000 |
Oxalate |
1,000 |
|
|
| CN- |
10 |
Pb2+ |
1,000 |
|
|
| Cu2+ |
1,000 |
S2O32- |
1,000 |
|
|
| Fe3+ |
1,000 |
Tartrate |
1,000 |
|
|
| K+ |
1,000 |
Zn2+ |
1,000 |
|
|
| Mg2+ |
1,000 |
|
|
|
|
1)tested with Na-dodecyl sulfate
2)tested with N-cetylpyridinium
chloride
3)tested with polyvinylpyrrolidone
5. Reagents and Auxiliaries
The analytic test strips are stable at
least up to the date stated on the pack when stored in the closed
tube at +15 to +25°C.
Package Contents:
Tube containing 50 analytical test strips Bar code strip
Other Reagents:
EM Quant® Iron Test, Cat. No.
10004, measuring range 3+500mg/l Fe2+
Universal indicator strips pH 0-14, Cat. No.
9590
Sodium acetate GR, Cat No. SX0265
Sulfuric acid 25% GR, Cat. No. SX1243M
L(+)Ascorbic acid GR, Cat. No. AX1775
Ammonium iron(II) sulfate hexahydrate GR
6. Preparation
- Check whether the iron content is within the
measuring range
>
- Use the EM Quant® Iron Test
as a guide. Samples containing more than 200mg/l Fe2+
must be diluted with distilled water.
>
· The Ph must be within the range 1-4.
Check with universal indicator strips. If pH is lower than 1, buffer
with sodium acetate; if greater than 4, add dilute sulfuric acid
dropwise.
7. Procedure
- Observe the instructions for the Rqflex
Reflectometer.
>
The following applies to the Iron Test:
Measurement procedure A. Stored reaction time:
15 sec.
- Remove 1 analytical test strip and immediately
reclose the tube.
>
- Press START button of the reflectometer and
at the same time immerse both reaction zones of the test
strip in the pretreated solution (5-40°C) for approx. 2
sec.
>
- Vigorously shake off excess liquid from the
test strip
>
- As soon as the beeper sounds (5 sec. before
end of reaction time), insert the test strip all the way into the
strip adapter with the reaction zones facing the display.
>
- Read off the result from the display inmg/l
Fe2+. The result is automatically stored.
>
Note:
- At the end of each workday, cleanse the
strip adapter thoroughly with water or ethanol
>
- To determine the total of Fe2+
and Fe3+ ions, dissolve 1 spatula-tip of ascorbic acid
in approx. 10ml of sample solution and perform the measurement
after approx. 1 min.
>
9. Method Control
To check analytical test strips, equipment and
procedure:
Dissolve 0.7g ammonium iron(II) sulfate
hexahydrate in distilled water, make up to 100ml and mix. Fe2+
concentration 1,000mg/l. Dilute this standard solution to 100mg/l Fe2+
and analyze as described in section 7.
Purchase Iron Test Strips 20-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1
Gallade Part#: 16983-1
Mfr Part#: 16983-1
Brand: EMD Chemicals EM Science
Container: 1 PK of 50 Strips
Other products in the category Chemicals for Laboratory / Test Kits/Strips:
Alcohol Test Strips 50/each Reflectoquant 1 EA *Requires RQflex 2 EMD# 16950-1 --
Aluminum Test Strips 10-250 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Aluminum Test Strips 5-50 ppm Reflectoquant 1 PK *Requires RQflex 2 #16950-1 HAZMAT fee incl --
Ammonium Test Strips 0.2-7.0 ppm Reflectoquant 50 PK *Req RQflex 2 #16950-1 HAZMAT fee incl --
Ammonium Test Strips 10-400 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Ammonium Test Strips 20-180 ppm Reflectoquant 1 PK *Req RQflex 2 EMD# 16950-1 HAZMAT fee incl --
Ammonium Test Strips 5.0-20.0 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl --
Arsenic Test Strips 0.01-0.5 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Arsenic Test Strips 0.1-3.0 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Ascorbic Acid Test Strips 25-450 ppm Reflectoquant 50 PK *Requires RQflex 2 EMD# 16950-1 --
Ascorbic Acid Test Strips 50-2000 ppm EM Quant (1 PK of 100) --
Blank Test Strips Reflectoquant 50 PK *Requires RQflex 2 EMD# 16950-1 --
Calcium Test Strips 10-100 ppm EM Quant (1 PK of 60) HAZMAT fee incl --
Calcium Test Strips 2.5-45 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl --
Carbonate Hardness Test Strips 70-425 ppm EM Quant (1 PK of 100) --
Chloride Test Strips 500-3000 ppm EM Quant (1 PK of 100) --
Chlorine Test Strips 0.5-10 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1 --
Chlorine Test Strips 4-120 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Chromate Test Strips 1.0-45.0 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl --
Chromate Test Strips 3-100 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Cobalt Test Strips 10-1000 ppm EM Quant (1 PK of 100) --
colorpHastŪ pH Test Strips (non-bleeding), PH Variety Pack, 700181 (13 packs of 100) --
Copper Test Strips 10-300 ppm EM Quant (1 PK of 100) --
Copper Test Strips 5-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1 --
Cyanide Test Strips 1-30 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
EM Quant Blank Test Strips (1 PK of 100) --
Fixing Bath (Silver) Test Strips 0.2-5.0 g/l Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1 --
Fixing Bath (Silver) Test Strips 0.5-10 g/l EM Quant (1 PK of 100) --
Formaldehyde Test Strips Kit 10-100 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Glucose Test Strips 1-100 ppm Reflectoquant 50 PK *Requires RQflex 2 EMD# 16950-1 --
Iron Test Strips 0.5-20 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1 --
Iron Test Strips 3-500 ppm EM Quant (1 PK of 100) --
Lactic Acid Test Strips 1-60ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1 --
Lead Test Strips 20-500 ppm EM Quant (1 PK of 100) --
Lipase Test Strips 10-400) Reflectoquant 1 EA *Req. RQflex 2 #16950-1 HAZMAT fee incl --
Maldehyde Test Strips 1-45 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl --
Malic Acid Test Strips 1-60ppm Reflectoquant 50 PK *Requires RQflex 2 EMD# 16950-1 --
Manganese Test Strips 0.5-45 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl --
Manganese Test Strips 200-100 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Molybdenum Test Strips 1-45 ppm Reflectoquant 1 PK *Req RQflex 2 #16950-1 HAZMAT fee incl --
Molybdenum Test Strips 5-250 ppm EM Quant (1 PK of 100) HAZMAT fee incl --
Nickel Test Strips 10-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1 --
Nickel Test Strips 10-500 ppm EM Quant (1 PK of 100) --
Nitrate Test Strips 10-500 ppm EM Quant (1 PK of 25) --
Nitrate Test Strips 10-500 ppm EM Quant (1 PK of 100) --
Nitrate Test Strips 3-90 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1 --
Nitrate Test Strips 5-225 ppm Reflectoquant 50 PK *Requires RQflex 2 EMD# 16950-1 --
Nitrite Test Strips 0.03-1.0 g/l Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1 --
Nitrite Test Strips 0.1-3.0 g/l EM Quant (1 PK of 100) --
Nitrite Test Strips 0.5-25.0 ppm Reflectoquant 50 PK *Requires RQflex 2 EMD# 16950-1 --
RELATED PRODUCTS
RQflex 10 Reflectometer for EMD REFLECTOQUANT Test Strips -- Works with Reflectoquant test strips
Store Home | Chemicals A-Z | Chemicals for Laboratory | Brands | Safety & Industrial Products
Gallade Chemical
Gallade Chemical shopping cart powered by Nexternal
|
|