• Skip to primary navigation
  • Skip to main content
  • Skip to footer

ProUmid

  • English
  • Deutsch
  • Home
  • Products
    • Dynamic Vapor Sorption (DVS)
      • SPS
      • Vsorp
      • Accessories & Options
        • Video Camera
        • Raman Spectroscopy
        • Water Vapor Permeability
        • Large Objects Kit
        • Membrane Dryer
        • Sample Carousels and Sample Dishes
        • 21 CFR Part 11 Software
    • Moisture Equilibration
    • Humidity Generators
      • MHG32
      • MHG100
    • MCC Humidity Reference
  • Applications
    • Pharmaceutical Industry
    • Food Research
    • Building Material
    • Packaging & Polymer Films
  • Contract Analysis
  • Events
  • Seminars
  • Literature
  • About us
  • Contact
You are here: Home / Dynamic Vapor Sorption (DVS) Analysis
Dynamic Vapor Sorption

Dynamic Vapor Sorption (DVS) Analysis

The dynamic vapor sorption method is used in laboratories world-wide to examine the intriguing moisture sorption behaviour of materials. DVS is used in the industry as well as in academia. It is applied in pharmaceutics for salt-screening and to analyse polymorphism. In food research it is used in stability and shelf-life studies as well as to investigate moisture migration between ingredients in a food product. DVS helps to develop sophisticated packaging materials by measuring the water vapor permeability of films and foils. It is also a valuable tool to asses the caking behaviour of powdered and granular material during transport, storage and handling. In building physics it is used to analyse water uptake and release of insulation and construction materials made of wood, plaster, fibres or concrete. In the electronic industry moisture induced failure of componenents is of interest. Originally developed for pharmaceutical research, dynamic vapor sorption nowadays is used in a continuously growing number of DVS applications.

dynamic vapor sorption samples

Dynamic vapor sorption method

The basic operation principle of a gravimetric sorption analyser is to measure the change in mass over time of a sample that is kept in an environment of controlled and constant temperature and relative humidity. Change in mass takes place either by water sorption (uptake) from the surrounding air to the sample or water desorption (release) from the sample.

Sorption kinetics curve – single humidity step

After a change in relative humidity, e.g. to a higher humidity, uptake or release of water by the sample is determined gravimetrically by means of a microbalance at defined time intervals. At the early stage of sorption/desorption, the change in weight is large. Over time, the process approaches an equilibrium and the change in weight is continuously getting smaller.
schematic sorption cinetics curve
sorption cycle

Sorption cycle – multiple humidity steps

When the sample weight is finally stable, it is at equilibrium with the surrounding atmosphere. The measurement is then continued at the next humidity step (lower or higher relative humidity). Typically, one or more complete sorption/desorption cycles (sorption from low to high RH and desorption from high to low RH) in small RH steps are done.

Sorption Isotherm

The individual equilibrium data points from all humidity steps of the sorption/desorption cycles are used to generate the sorption isotherm. The sorption isotherm is the relationship between the water content of a sample and the relative humidity of the ambient air at a particular temperature.
sorption isotherm

Dynamic Vapor Sorption Instruments

ProUmid manufactures and sells two series of multi-sample dynamic vapor sorption instruments that cover all kind of moisture sorption applications.

dynamic vapor sorption SPS

SPS series

The multi-sample sorption system SPS is a synonym for highest precision and reliable measurements over a wide temperature range. With the available four SPS models, different in precision and load range of the micro-balance, the SPS covers all applications areas from pharmaceutical pre-formulation to building materials. Read more about the vapor sorption analyzer SPS…

Vsorp series

The Vsorp is an easy to operate, innovative instrument designed for measurement tasks at moderate temperatures used in research, development and quality assurance. It combines easy operation and minimized maintenance requirements with a robust design. Discover the moisture sorption analyser Vsorp…
Vsorp with closed transparent cover

Footer

Legal Information

  • Legal notice
  • Privacy policy

Address

ProUmid GmbH & Co. KG
August-Nagel-Str. 23
89079 Ulm, Germany
+49 (0)7305 2030 440
info@proumid.com

Aftersales Service

Technical Support
Service Visit
Disposables

ProUmid GmbH & Co. KG

Copyright © 2021

    Please send me

    Quotation forInformation on

    Water Vapour Sorption Analyzer SPS
    SPS11-10µSPSx-1µ High LoadSPSx-1µ AdvanceSPS23-100n

    Moisture Sorption Analyzer Vsorp
    Vsorp BasicVsorp PlusVsorp Enhanced

    Sorption Accessories
    Option Camera
    Option Raman Spectroscopy
    Permeability Kit
    Large Objects Kit
    Membrane Dryer
    21 CFR Part 11 compliant software package
    Reference Material for Humidity Validation

    Humidity Generator
    MHG32MHG100

    Powder Conditioner
    Powder Conditioner

    * I have read and accepted the privacy policy.

    (* required fields)
    By clicking on the button "Submit", you are authorizing ProUmid GmbH & Co. KG to make use of the entered data in the contact form for contacting you so that we may answer your request and to provide you with information on the requested products and services. We will not pass your personal data to third parties. You will be able to unsubscribe from all of our e-mails at any time. Please have a look at our privacy policy for more information on how we use your data.

      Please send me

      Quotation for

      Contract Analysis: Dynamic Vapor Sorption (DVS)
      Sorptions Isotherm, Sorptions KineticsPermeability, Water Vapor Transmission Rate (WVTR) of foils or packaging materials

      * I have read and accepted the privacy policy.

      (* required fields)
      By clicking on the button "Submit", you are authorizing ProUmid GmbH & Co. KG to make use of the entered data in the contact form for contacting you so that we may answer your request and to provide you with information on the requested products and services. We will not pass your personal data to third parties. You will be able to unsubscribe from all of our e-mails at any time. Please have a look at our privacy policy for more information on how we use your data.

        Please send me a quotation for

        item no. Description quantity package size
        100913 sample dishes 18 mm box (100 pieces)
        100914 sample dishes 33 mm box (100 pieces)
        100486 sample dishes 50 mm box (100 pieces)
        100916 sample dishes 86 mm box (100 pieces)
        100917 distance pieces set (12 pieces)
        101867 mesh cover 50 mm set (12 pieces)
        101596 PTFE inserts set (12 pieces)
        100485 secondary sample dishes 38 mm box (10 pieces)
        100910 sample carousel 5 sample positions piece
        100908 sample carousel 11 sample positions piece
        100909 sample carousel 23 sample positions piece

        * I have read and accepted the privacy policy.

        (* required fields)
        By clicking on the button "Submit", you are authorizing ProUmid GmbH & Co. KG to make use of the entered data in the contact form for contacting you so that we may answer your request and to provide you with information on the requested products and services. We will not pass your personal data to third parties. You will be able to unsubscribe from all of our e-mails at any time. Please have a look at our privacy policy for more information on how we use your data.

          Service visit

          * I have read and accepted the privacy policy.

          (* required fields)
          By clicking on the button "Submit", you are authorizing ProUmid GmbH & Co. KG to make use of the entered data in the contact form for contacting you so that we may answer your request and to provide you with information on the requested products and services. We will not pass your personal data to third parties. You will be able to unsubscribe from all of our e-mails at any time. Please have a look at our privacy policy for more information on how we use your data.

            Technical Support

            * I have read and accepted the privacy policy.

            (* required fields)
            By clicking on the button "Submit", you are authorizing ProUmid GmbH & Co. KG to make use of the entered data in the contact form for contacting you so that we may answer your request and to provide you with information on the requested products and services. We will not pass your personal data to third parties. You will be able to unsubscribe from all of our e-mails at any time. Please have a look at our privacy policy for more information on how we use your data.

              Please send me the following Application Note / White paper

              Application Notes

              Food

              AN_20-01 Amorphous lactose in food
              AN_20-02 Amorphous fractions in sucrose and sucrose containing model food systems
              AN_20-03 Deliquescence and deliquescence lowering of food ingredients and blends
              AN_20-04 Dehydration behavior of bread crumb and crust

              Pharma

              AN_20-05 Amorphous lactose in the pharmaceutical industry
              AN_20-06 Hydrate formation of L-lysine HCl
              AN_20-09 Hydrate formation of creatine

              Building materials

              AN_20-07 Water vapor sorption of plaster

              Permeability of Packaging material and Foils

              AN_12-01 Water vapor permeability of films

              AN_15-01 Water vapor sorption of product packages

              White Papers

              Universal

              WP_20-01 Amorphous content lactose

              Food

              WP_20-02 Amorphous fractions in sucrose and sucrose containing model food systems
              WP_20-03 Deliquescence and deliquescence lowering of food ingredients and blends

              Pharma

              WP_20-06 Hydrate formation of L-lysine HCl

              * I have read and accepted the privacy policy.

              (* required fields)
              By clicking on the button "Submit", you are authorizing ProUmid GmbH & Co. KG to make use of the entered data in the contact form for contacting you so that we may answer your request and to provide you with information on the requested products and services. We will not pass your personal data to third parties. You will be able to unsubscribe from all of our e-mails at any time. Please have a look at our privacy policy for more information on how we use your data.