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Object Record

Catalog Number 01.0006.012
Object Name Filter, vacuum
Title Fisher Scientific Company Filtrator
Description 01.0006.012.01 - Fisher filtrator
01.0006.012.02 - pad
01.0006.012.03 - vacuum jar
01.0006.012.04 - stopper

Textured metal circular base withich is hollow and has two grooves on either side witch scsrew holes. "FLT" in red marker. Vacuum on/off switch. Fisher and Eimer & Amend name plate. Circular pad. Glass jar fits on top (bottom is opent) with green rubber stopper.
Date 1940s
Collection Lin Tsai Collection
Accession number 01.0006.012
Caption Fisher Scientific Company Filtrator
Catalog date 2003-01-26
Catalog type History
Provenance Used by Dr. Lin Tsai in his chemical laboratory, which supported the Stadtman’s laboratory. From "Modern Laboratory Appliances, Catalog 90," Fisher and Eimer & Amend, 1942, page 450: "This apparatus is used for vacuum filtration with the collection of the filtrate directly in a beaker under convenient conditions. In many analytical procedures, it is necessary to collect the filtrate quantitatively, which is ordinarliy a slow process and consumes a great deal of valuable time. A single Fisher Filtrator cuts down this filtering time to almost one-third the normal time required for gravity filtering. When a battery of Filtrators is connected in a series and attached to a single vacuum source, a number of filtrations can be conducted simultaneously, saving even more time."

Dr. Lin Tsai (1922-2003) was born in Hong Kong, coming to the United States for his Master’s and Ph.D. in Organic Chemistry. He became a naturalized citizen in 1962. He came to the National Heart, Lung, and Blood Institute in 1959, where he worked in the Laboratory of Biochemistry with Earl and Thressa Stadtman. His research focus was the stereochemical course of enzymatic reactions and the structures and syntheses of organic compounds. His most important work centered on nicotinic acid metabolism and riboflavin degradation.
Number of images 1
Updated 2017-02-16
Condition Good
Organizations NIH; NHI, Laboratory of Biochemistry
NIH; NHLBI, Laboratory of Biochemistry
Buildings Building 3
NIH Property # none
Old NIH Property # none
Serial # none
People Tsai, Lin