Affordable Access

A sodium lauryl sulfate solubility test for the identification of pneumococci

Journal of Laboratory and Clinical Medicine
Publication Date
  • Laboratory Methods General


Abstract Sodium lauryl sulfate rapidly cleared suspensions of pneumococci with disintegration of the organisms. Several hundred strains of pneumococci of various types have been studied and found to be lysed rapidly in a 0.2 per cent concentration of the compound. All freshly isolated strains showed definite clearing within thirty minutes. Streptococci under the same conditions were unaffected. The test is best performed by adding 0.1 c.c. of a 2 per cent solution of crude sodium lauryl sulfate (“Dreft”) to 0.9 c.c. of a 24-hour culture. Usually the results can be determined in a few minutes, but if clearing does not occur, it is necessary to incubate the mixture at 37 °C. for one-half hour before the final reading.

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

[The purity test and assay of sodium lauryl sulfat...

on Pharmaceutica acta Helvetiae April 1959

[Purity test & assay of sodium lauryl sulfate].

on Pharmaceutica acta Helvetiae 1959

Acid solubility of dentin pretreated with EDTA, sa...

on Journal of dental research October 1977

Dissolution and solubility behavior of fenofibrate...

on Drug development and industria... October 2005
More articles like this..