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4 Cards in this Set
- Front
- Back
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Correlate weight measurements with volume delivery.
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Weight = volume x density
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What is the theory of gravimetric analysis?
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-volume is indirectly measured by the weight of the volume of water.
-At a given temperature, the density of water can be used to calculate the precise volume dispensed. |
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What are the factors that may alter pipetter delivery volume?
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1. Mechanical wear &/or aging of the plunger, shaft, o-rings, or other parts.
2. Pipette tip seal 3. Dirty or moist assembly 4. Clogged orifice or tip 5.Operator error |
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What are the factors that can cause errors in weighing or operation of an analytical balance?
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1. Moisture
2. Evaporation 3. Fingerprints (residual oils) 4. Drafts 5. Vibration |
