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Hendrik Zwaardemaker
Dutch physiologist

Hendrik Zwaardemaker

The basics

Quick Facts

Intro
Dutch physiologist
Gender
Male
Place of birth
Haarlem, North Holland, Netherlands, Kingdom of the Netherlands
Place of death
Utrecht, Utrecht, Netherlands, Kingdom of the Netherlands
Age
73 years
The details (from wikipedia)

Biography

Hendrik Zwaardemaker ((1857-05-10)10 May 1857 in Haarlem – 19 September 1930(1930-09-19) in Utrecht) was a Dutch scientist who invented the olfactometer in 1888.

From 1897 to 1927 he was professor of Experimental Physiology at the University of Utrecht. In 1903 he became member of the Royal Netherlands Academy of Arts and Sciences. In addition to his work on the sense of smell, he also conducted research on the human heart. He found that salts of potassium and other radioactive elements stimulated the heart.

His major work was "Die Physiologie des Geruchs" (Physiologie of Olfaction), it appeared in 1895.

Zwaardemaker Pairs

An important contribution of Zwaardemaker's studies is the concept of odor conjugates. Zwaardemaker discovered that certain odors could be prevented from detection by smell senses when mixed with various essential oils. These combination of odors are referred to as Zwaardemaker Pairs, (or Z-pairs).

Offensive OdorCommon Odor SourcesZ-Pair Essential OilActive Ingredient
Butyric acidVomit, Flesh Decomposition, Rancid Dairy ProductsJuniper Oil
ChlorineVanillaVanillin
AmmoniaUrineRose OilIonone
TobaccoCigarette SmokeWintergreen OilMethyl salicylate
MuskBitter Almond oilBenzaldehyde
RubberCedar Oil
SkatoleFeces, Coal tarCedar Oil
MercaptanNatural GasEucalyptus OilEucalyptol
The contents of this page are sourced from Wikipedia article. The contents are available under the CC BY-SA 4.0 license.
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