The biochemistry of human saliva is very complicated and the roles of many
of its chemical constituents have not yet been explained, For this reason t
he possibility of OPLC determination of formaldehyde in saliva has been inv
estigated; the results are presented in this paper. The procedure was usefu
l for detection and quantitative determination of formaldehyde in human sal
iva, The results obtained indicate the possibility of further interesting r
esearch work in this field.