VACUettes®
Auto-Dilution Ampoules
for Colorimetric Analysis
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VACUettes® ampoules are used with highly concentrated samples. They employ a special auto-dilution feature that eliminates the need for a time-consuming and error-prone preliminary dilution. As a result, the entire test takes only 2 to 3 minutes, with a level of accuracy comparable to a volumetric procedure.
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Test kits contain 30 auto-dilution ampoules, sample cup, accessory solutions (when necessary), MSDS, and instructions.
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VACUettes® are self-filling, 7mm diameter ampoules. Attached to the tip of each ampoule is a capillary pipet which is calibrated to draw the correct volume of sample for one of four dilution factors: 25X, 50X, 100X and 1000X. (See photo above.)
The VACUettes® Method. The ampoule is held in a horizontal position while the capillary tip contacts the sample. After the capillary pipet fills, it is immersed in a diluent (usually distilled or deionized water) and the tip of the ampoule is snapped. The sample and diluent are drawn into the ampoule where they're mixed with reagent. The resulting color change can then be compared with liquid color standards to quantify results.
Use VACUettes® for fast, simple high range analysis
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HOW TO USE Vacuettes®
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SAMPLE
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SNAP/DILUTE
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MIX
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READ
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Step 1. Hold the ampoule horizontally and touch the tip of the capillary to the sample. The
capillary will fill automatically. |
Step 2. Fill the snap cup with
diluent and immerse the entire ampoule/capillary tube assembly. Snap the tip. The ampoule will fill
with the diluted sample. |
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Step 3. A bubble of gas will appear. Tilt the ampoule several times, allowing the bubble to travel from end to end. |
Step 4. When color develops,
quantify the results with a color
comparator.
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Test kits contain 30 ampoules, snap cup, accessory solutions (when necessary), MSDS, and instructions. Refill packs of 30 ampoules, and accessory solutions are available.
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