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Cypermethrin method
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Cypermethrin method. 5% methanol added to sample (water) 5g NaCl 50 ml extractions (250ml) 2 hour SBSE extraction with PDMS Twister ™ Thermal desorption with TDU/CIS followed by analysis by GC-MS/MS (EI). Log Kow 5.3. Initial results.
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Cypermethrin method
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Cypermethrin method • 5% methanol added to sample (water) • 5g NaCl • 50 ml extractions (250ml) • 2 hour SBSE extraction with PDMS Twister™ • Thermal desorption with TDU/CIS followed by analysis by GC-MS/MS (EI) Log Kow 5.3
Initial results Water (50ml) @ 0.1 ng/L cypermethrin (n=6, RSD 9%) Water (50ml) blank
Optimisation for target LOD 0.01ng/L(initial work) (250ml sample) water @ 0.1 ng/L cypermethrin (50ml sample) water @ 0.1 ng/L cypermethrin (250ml sample) water @0.05 ng/L cypermethrin
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