A 200 mL water sample was treated with SPE column for pe- concentration of a certain pesticide. The final solution (24 mL) was analysed by HPLC and the .pesticide content was 1.2 ppm :The pre-concentration factor is 12.5 O 6.7 O 11.4 O 8.3

A 200 mL water sample was treated with SPE column for pe- concentration of a certain pesticide. The final solution (24 mL) was analysed by HPLC and the .pesticide content was 1.2 ppm :The pre-concentration factor is 12.5 O 6.7 O 11.4 O 8.3

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter31: Introduction To Analytical Separations

Section: Chapter Questions

Problem 31.13QAP

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Question

A 200 mL water sample was treated
with SPE column for pe-
concentration of a certain
pesticide. The final solution (24 mL)
was analysed by HPLC and the
.pesticide content was 1.2 ppm
:The pre-concentration factor is
12.5 O
6.7 O
11.4 O
8.3

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