Used Osmometer - Wescor -  Vapor Pressure 5500

Quantity:	1 available
Unit Price:	1800 1,800.00 USD

Item Description

Wescor 5500 Vapor Pressure Osmometer


Alternate Names:
Cryoscope

Dimensions (approx.):
7"W x 11"D x 7"H (outside)

Electrical:
115 Volts, 50-60 Hz, 30 W
Product Description
The Wescor 5500XRS vapor pressure osmometer requires a sample volume of only 2 to 10 microlitres (10 microlitres for routine operation). Extended range with a switch on the back (hold/run) which disables the electronics that let you put a sample in and let it equilibrate over time. Usually used with plant sections, because they take longer time to equilibrate. Process time: 64 seconds. Range: 0-3000mmol/kg. Because the indication is based on the measurement of vapor pressure of the specimen, the method has many advantages over the freezing point depression method. Vapor pressure and freezing point are among the colligative properties of a solution. Compared with pure solvent, these properties are altered in proportion to the number of solute particles dissolved in each kilogram of solvent (water in the case of biological solutions). Thus, a measurement of either property affords an indirect means of determining solution concentration, or osmolality. The merits of the vapor pressure method stem from the fact that it does not require an alteration in the physical state of the specimen. Other advantages include:
a) routine operation on microsamples of any biological solution, including whole blood, serum, plasma, urine, and sweat, as well as complex specimens such as tissue samples.
b) Avoidance of measurement artifacts that arise in freezing point depression measurements due to elevated viscosity, particulate matter, inhomogeneities or other physical characteristics of the sample.
c) Superior reliability because the measurement is accomplished largely by electronic rather than mechanical means.

Payment Payment methods: Bank Transfer, Cash, Credit Card, Debit Card, MedWOW SafeTrade, PayPal Advance payment percentage: 100% Return Policy Does the seller accept returns? Yes Return valid for: 30 days after buyer's receipt of the item Allowed refund types: Money back Return shipping & handling will be paid by the buyer Packaging The item is not packed Inspection Seller allows inspection of item? Yes Available for inspection from: Immediate

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Location: United States, Illinois

Business type: Laboratory

Seller's language(s): Spanish

Quantity available: 1

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