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Determination of Methylcyclopentadienyl-manganese Tricarbonyl by Solid Phase Microextraction-direct Thermal Desorption-quartz Furnace Atomic Absorption Spectrometry by Marı́a Sandra Fragueiro; Fausto Alava-Moreno; Isela Lavilla; Carlos Bendicho is a Chemistry article available to read on EtoBox.

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## Ž . A new procedure that uses a pre-concentration system based on solid phase microextraction SPME and detection by quartz furnace-atomic absorption spectrometry after thermal desorption from the microextraction fiber has been Ž . proposed for the determination of methylcyclopentadienylmanganese tricarbonyl MMT in gasoline and water. Working MMT solutions were prepared in 40 ml amber vials, and sampling was performed by exposing the SPME fiber to the headspace over vigorously stirred samples for 15 min. The analytical performance characteristics of the y1 Ž . proposed procedure were as follows: the detection limit for MMT was 0.71 ng ml as Mn , with a relative standard y1 Ž . deviation of 4% for MMT determination of 25 ng ml as Mn, n s 6 while the calibration curve was linear up to 100 ng ml y1 range. The proposed procedure was finally applied to the determination of MMT in gasoline and water Ž . Ž samples and non significant differences Student's t-test were found between obtained values using direct . calibration and standard additions and those expected values.

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Author

Marı́a Sandra Fragueiro; Fausto Alava-Moreno; Isela Lavilla; Carlos Bendicho

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0584-8547)

Published

2001

Language

EN

Field

Chemistry (Physical Sciences)