Copper is a common contaminant in water, and its presence needs to be accurately monitored for various applications, including environmental monitoring and industrial processes. The MACHEREY-NAGEL Colorimetric test kit VISOCOLOR ECO Copper, available from Vendart, offers a reliable and straightforward solution for determining copper levels in water samples. This blog explores the features, benefits, and detailed procedures for using this test kit.
VISOCOLOR ECO Copper Test Kit: Precision and Ease of Use
The VISOCOLOR ECO Copper test kit is designed to combine simplicity with high measurement accuracy. The kit compensates for color and turbidity, ensuring precise results. Users can choose between visual determination using a color chart or photometric measurement with compatible compact photometers.
Contents of the Test Kit
- 30 mL Cu-1: A reagent for the initial reaction.
- 20 mL Cu-2: A secondary reagent for color development.
- 2 Screw-Plug Measuring Glasses: For holding the test samples.
- 1 Slide Comparator: For visual comparison of color changes.
- 1 Color Chart: For visual determination of copper concentration.
- 1 Plastic Syringe (5 mL): For accurate sample measurement.
- 1 Instruction Leaflet: Detailed usage instructions.
Measurement Range
Step-by-Step Testing Procedure
To ensure accurate results, follow these steps:
Required Equipment
- Measuring Glasses
- Slide Comparator
- Color Chart
- Plastic Syringe
- Reagents (Cu-1 and Cu-2)
Colorimetric Determination with Color Chart
Sample Preparation: Using the plastic syringe, pour a 5 mL water sample into each of the two measuring glasses. Place one measuring glass (A) in the comparator without adding reagents.
Reagent Addition:
Add 5 drops of Cu-1 to the second measuring glass (B), seal it, and mix well.
Add 5 drops of Cu-2 to the same glass, seal it, and mix well.
Reaction Time: Wait for 10 minutes, then open the glass (B) and place it in position B of the comparator.
Color Comparison: Slide the comparator until the colors match in the inspection hole on top. Read the measurement result from the recess on the comparator reed. Mid-values can be estimated.
Post-Test Care: After use, rinse both measuring glasses thoroughly and seal them.
Photometric Determination
For those using photometric evaluation, follow the separate instructions provided for photometric performance. The reagents are compatible with compact photometers for more precise and quantitative results.
Handling and Storage
Safety and Disposal
For safety information, refer to the box label and the safety data sheet (SDS), which can be downloaded from MACHEREY-NAGEL’s website. Proper disposal instructions for used samples are also available in the SDS.
Storage Recommendations
Store the test kit in a cool, dry place, ideally below 25 °C, to maintain reagent integrity and ensure accurate results.
Potential Interferences
Be aware of potential interferences when testing:
- pH Adjustment: Adjust strongly acidic and buffered samples to pH 9 with ammonia before testing.
- Ion Interference: High concentrations of iron(II), chromium(VI), nickel, manganese, and cobalt can disrupt the test results. Specifically, cobalt ions can cause a red color complex that may interfere with copper detection.
- Presence of Cyanide and Sulfide: Concentrations above 1 mg/L can lead to limited results.
Applications
The VISOCOLOR ECO Copper test kit is suitable for various applications:
- Environmental Monitoring: Checking water bodies for copper contamination.
- Industrial Processes: Monitoring copper levels in industrial effluents.
- Educational Purposes: Teaching students about water chemistry and contamination.
The MACHEREY-NAGEL Colorimetric test kit VISOCOLOR ECO Copper from Vendart offers an accurate and user-friendly solution for detecting copper in water samples. Its comprehensive kit and easy-to-follow procedures make it ideal for various applications, ensuring reliable water quality analysis. By adhering to the outlined procedures and safety guidelines, users can achieve precise and consistent results, making this test kit an essential tool for water monitoring.
