A Novel Device for the Accurate Dispensing of Small Volumes of Liquid Samples

Abstract

A sample dispenser with electronic control of delivered volume has been designed and evaluated. With the new device, liquid samples are dispensed in the form of uniform droplets less than 4 nL in volume; total volumes as small as 40 nL can be delivered with 1.5% precision. Important features of the microdroplet formation process have been studied and the effect of sample solution concentration and viscosity have been examined. The new dispenser is expected to find application in several areas, including electrothermal atomization atomic absorption spectrometry, automated titrimetry, and high-precision, low-volume solution sampling. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 26, 1981
Accession Number
ADA094468

Entities

People

  • Gary M. Hieftje
  • J. G. Shabushnig

Organizations

  • Indiana University

Tags

Communities of Interest

  • Biomedical
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Amplifiers
  • Analytical Chemistry
  • California
  • Chemistry
  • Civil Engineering
  • Frequency
  • Generators
  • Liquids
  • Materials
  • Materials Laboratories
  • Measurement
  • Military Research
  • New York
  • Precision
  • United States
  • Waveforms

Fields of Study

  • Chemistry

Readers

  • Aerosol Science/Aerosol Physics
  • Integrated Circuit Design and Technology.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene