|Object Name||Paper, Filter|
|Title||W. & R. Balston Ltd. Genuine Whatman Filter Paper, No. 42|
|Description||Cardboard box covered with light paper. Red label on front reads "Made in England, No. 42, 7.0 cms, 100 circles." Round black label on top reads "W.&R. Balston Ltd. Genuine Whatman Filter Paper, No. 42, Registered in U.S. Patent Office, Made in England, Charta Filtratoria Acido Hydrochlorico et Fluorico Extracta."|
|Collection||Lin Tsai Collection|
|Caption||W. & R. Balston Ltd. Genuine Whatman Filter Paper, No. 42|
Used in Dr. Lin Tsai’s laboratory. Has return note inside but no date. Label on bottom "No. 42 ‘Ashless’--for finest precipitates and precise work. For use with Buchner filter and vacuum pump. No. 42, 7.0 cm, Average Ash per Circle .000038 gram."
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|
|Organizations||NIH; NHLBI, Laboratory of Biochemistry|
|NIH Property #||none|
|Old NIH Property #||none|