A Palin devoted much of his professional life to
developing water-testing methods. He pioneered the
diethyl-para-phenylene diamine indicator method that would
provide the key explanation of chlorination breakpoint.
This method laid the foundation for the present use of
chlorine as a disinfectant in drinking water and swimming
pools. Today, DPD is the international standard method for
measuring free chlorine and combined chlorine residuals. It
also determines other residuals, such as chlorine dioxide,
bromine, iodine and ozone.
As chief chemist and bacteriologist at the Newcastle and
Gateshead Water Co. in 1945, Palin developed a simple,
reliable system of routine water testing involving the use
of tablets. In 1960, Wilkinson & Simpson, now
Palintest Ltd., was granted exclusive license to
manufacture and market the Palintest system of water
testing. In 1977, Palin retired from his position to join
the Palintest Board.
Palin held a first class degree from London University
and a Ph.D. for his chlorination research. He received a
gold medal at the Public Works Congress of 1950 in London.
He was an official adviser to the Standard Methods
Committee of the American Water Works Association, as well
as a Fellow of the Royal Society of Chemistry. He lived in
Gosforth, Newcastle-upon-Tyne, U.K.