PhasePrep - Mix Solvents Instrument
PhasePrep is an instrument designed to document and prepare solutions and mix solvents for HPLC mobile phases, titrations, extractions etc. PhasePrep prepares samples gravimetrically, rather than volumetrically, improving accuracy, increaseing your safety, and reducing waste. PhasePrep is GMP Compliant.
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Advantages
Improve Safety: Safety is improved because the pouring and spillage associated with the volumetric method is reduced dramatically or eliminated.
Greater accuracy: The gravimetric method is inherently more accurate than the volumetric method because the temperature of the solvent can be ignored. The amount of solvent contained by a volumetric flask is a function of temperature—but the weight of the solvent is not affected by temperature.
The most common way of obtaining high quantitative accuracy in HPLC, GC, AA, Mass Spectrometry and other techniques is to spike an unknown concentration of a sample with a known amount of another substance— commonly known as an internal standard. After the sample is analyzed, the response to the unknown concentration is compared to the internal standard and an accurate measurement of the concentration of the substance of interest is obtained.
The PhasePrep Solution Preparation System saves labor while increasing accuracy when preparing solutions having an internal standard.
The PhasePrep does this in five labor saving steps:
- Operator enters the sample number and his/her initials.
- A sample bottle is placed on the balance and the computer records the weight.
- Operator is prompted to add the appropriate amount of solute to the bottle.
- The computer calculates the exact amount of solvent required. The solvent, with the internal standard dissolved, is added to the sample to obtain a dilution with a typical accuracy of 0.02%.
- The completed sample is removed and the printed sample label is affixed to the bottle.
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