Apparatus and procedure for measuring release rates from formulations of lepidopteran semiochemicals

John H. Cross, James Homer Tumlinson, III, Robert E. Heath, Donald E. Burnett

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An apparatus was developed wherein a vacuum source was used to pull air across a controlled-release-formulation dispenser or a planchet containing a known quantity of a semiochemical and into a collector filled with a polymeric adsorbent. After a set time, the semiochemical was eluted with solvent and was quantified by gas-liquid chromatography (GLC). High percentages of known quantities of the lepidopteran semiochemicals (Z)-7-dodecen-l -ol acetate (Z7DDA), boiling point (bp) 275 ° C/1 atm, (Z)-9-tetradecen-1-ol formate (Z9TDF), bp 289 °C/1 atm, and (Z,Z)-3,13-octadecadien-1-ol acetate (ZZODDA), bp 490 °C/1 atm, were recovered. The semiochemicals did not oxidize and were recovered quantitatively from the adsorbent. The release rates of Z9TDF from a controlled-release dispenser were found to be directly proportional to the airflow rates. Release rate measurements on the Z9TDF dispensers were made for the purpose of estimating the method's precision. The method was shown to give internally consistent results by measurements on another Z9TDF formulation. The accuracy of the method is discussed.

Original languageEnglish (US)
Pages (from-to)759-770
Number of pages12
JournalJournal of Chemical Ecology
Volume6
Issue number4
DOIs
StatePublished - Jul 1 1980

Fingerprint

formic acid
semiochemical
semiochemicals
formates
Pheromones
boiling point
Dispensers
dispensers
Boiling point
Lepidoptera
adsorbents
Adsorbents
acetate
Acetates
acetates
Liquid chromatography
collectors
Vacuum
air flow
Gas chromatography

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

Cite this

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title = "Apparatus and procedure for measuring release rates from formulations of lepidopteran semiochemicals",
abstract = "An apparatus was developed wherein a vacuum source was used to pull air across a controlled-release-formulation dispenser or a planchet containing a known quantity of a semiochemical and into a collector filled with a polymeric adsorbent. After a set time, the semiochemical was eluted with solvent and was quantified by gas-liquid chromatography (GLC). High percentages of known quantities of the lepidopteran semiochemicals (Z)-7-dodecen-l -ol acetate (Z7DDA), boiling point (bp) 275 ° C/1 atm, (Z)-9-tetradecen-1-ol formate (Z9TDF), bp 289 °C/1 atm, and (Z,Z)-3,13-octadecadien-1-ol acetate (ZZODDA), bp 490 °C/1 atm, were recovered. The semiochemicals did not oxidize and were recovered quantitatively from the adsorbent. The release rates of Z9TDF from a controlled-release dispenser were found to be directly proportional to the airflow rates. Release rate measurements on the Z9TDF dispensers were made for the purpose of estimating the method's precision. The method was shown to give internally consistent results by measurements on another Z9TDF formulation. The accuracy of the method is discussed.",
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Apparatus and procedure for measuring release rates from formulations of lepidopteran semiochemicals. / Cross, John H.; Tumlinson, III, James Homer; Heath, Robert E.; Burnett, Donald E.

In: Journal of Chemical Ecology, Vol. 6, No. 4, 01.07.1980, p. 759-770.

Research output: Contribution to journalArticle

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