Microviscometer

Weyer, Elliott R.

doi:10.1126/science.101.2629.521.b

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two types of micro viscometers have been described. The one by Weyer (245) measures the viscosity of the liquid in terms of the resistance to the torque between two parallel and horizontal disks, one driven and the other stationary. That of Glynn and Grunberg (65) measures the time required for the meniscus of the liquid to move under constant pressure from one point to another in a capillary tube placed in a horizontal position.…”

Section: Viscometersmentioning

confidence: 99%

Organic Microchemistry

Willits¹

1949

Anal. Chem.

View full text Add to dashboard Cite

MICROCHEMICALanalyses of organic compounds still follow largely the pattern set by Fritz Pregl. Considerable strides have been made during the past 6 years, as evidenced by the increase in the number of microchemical laboratories and the wider application of microanalytical chemical techniques. During the late twenties and early thirties, microanalytical methods were but little used in the United States except in the Atlantic Coast states. Ten years later these methods had been introduced into the midwestern states, and today micromethods are in use in analytical laboratories throughout the country.The keen interest shown in the development of microchemical analysis is exhibited by the establishment of a committee on the performance of microchemical balances (A. H. Corwin of Johns Hopkins University, chairman); a revival of the committee on standardization of microchemical apparatus (A. Steyermark, chairman); and the re-establishment of a referee on the standardization of microchemical methods by the Association of Official Agricultural Chemists. The British Standards Institute has formed a subcommittee to standardize microchemical apparatus, and the work of this subcommittee is well advanced. Microchemistry has gone a long way since Pregl devised this scheme of analysis, for it is no longer limited to the analysis of material available in only small amounts. Instead, it has an accepted place, along with micromethods, for the analysis of materials available in large amounts. The micromethod is superior, in that it is faster, more economical of reagents, and in many instances more precise and accurate.

show abstract

Section: Viscometersmentioning

confidence: 99%

Organic Microchemistry

Willits¹

1949

Anal. Chem.

View full text Add to dashboard Cite

show abstract

Microviscometer

Cited by 1 publication

References 0 publications

Organic Microchemistry

Organic Microchemistry

Contact Info

Product

Resources

About