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Aluminum Test Vials® – Vacu Vials® Testing System

Fiyat Sorunuz

Rapid colorimetric aluminum determination in water samples using Eriochrome Cyanine R (ECR) method. APHA Standard Method 3500-Al B compliant.

APHA Standard Methods 3500-Al B (21st edition) compliant
Rapid modified Eriochrome Cyanine R (ECR) colorimetric method
Direct measurement range: 0.04 – 0.25 mg/L Al
15–29 tests per box
Minimum 20-month shelf life
Suitable for drinking water and treated water monitoring
Results expressed as mg/L (ppm) aluminum

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Daha fazla detay

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Daha fazla detay

Aluminum Vacu Vials® test system provides rapid quantification of aluminum in water samples through a modified Eriochrome Cyanine R (ECR) colorimetric method. At approximately pH 6.0, aluminum reacts with ECR to produce a red-colored complex proportional to the aluminum concentration. Results are expressed in ppm (mg/L) as aluminum. This system is particularly relevant for monitoring aluminum from treatment processes using alum (aluminum potassium sulfate) and for verifying compliance with drinking water secondary maximum contaminant limits.

Technical Specifications

Measurement Range	0.04 – 0.25 mg/L Al
Tests per Box	15–29 tests
Shelf Life	Minimum 20 months
Standard Method	APHA 3500-Al B (21st edition, 2005)
Colorimetric Reagent	Eriochrome Cyanine R (ECR)
Optimal pH	Approximately 6.0
Result Units	mg/L (ppm) as Al

Applications

Drinking water quality monitoring and compliance verification
Secondary maximum contaminant limit (SMCL) compliance testing (0.05–0.2 mg/L)
Treated water aluminum residual monitoring in water treatment plants
Process control testing where alum (aluminum potassium sulfate) is used for coagulation
Field and laboratory aluminum determination in water samples
Environmental and municipal water system routine analysis

Frequently Asked Questions

What is the detection range of this aluminum test vial system?

The measurement range is 0.04 – 0.25 mg/L Al. This range is suitable for monitoring aluminum residuals in treated drinking water and verifying compliance with secondary maximum contaminant limits (0.05–0.2 mg/L).

Which standard method does this system follow?

This system is based on APHA Standard Methods, 21st edition, Method 3500-Al B (2005), employing a rapid modified Eriochrome Cyanine R (ECR) method for aluminum determination.

Why is aluminum monitoring important in water treatment?

Alum (aluminum potassium sulfate) is commonly used as a coagulant in water treatment to remove suspended particles. However, this process can elevate aluminum levels in treated water. Monitoring ensures residual aluminum does not exceed regulatory limits (0.05–0.2 mg/L for drinking water secondary MCLs).

How many tests are included in one box?

One box contains 15–29 test vials, depending on packaging configuration.

What is the shelf life of these test vials?

The minimum shelf life is 20 months when stored under appropriate conditions.

What pH is optimal for this colorimetric reaction?

The Eriochrome Cyanine R (ECR) reaction with aluminum occurs at approximately pH 6.0, producing a red-colored complex proportional to aluminum concentration.