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Merck
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  • Bioassay evaluation on the efficacy of α-cypermethrin impregnated into long lasting insecticide treated nets using Anopheles stephensi.

Bioassay evaluation on the efficacy of α-cypermethrin impregnated into long lasting insecticide treated nets using Anopheles stephensi.

Asian Pacific journal of tropical medicine (2012-10-10)
Vatandoost Hassan, Mamivand Poor Hossein, Shayeghi Mansoreh, Abai Mohamad Reza, Raeisi Ahmad, Nikpoor Fatemeh
摘要

To evaluate the bioefficacy of α-cypermethrin impregnated into long lasting insecticide treated nets (LLITNs-INTERCEPTOR®) against main malaria vector, Anopheles stephensi (An. stephensi). The effectiveness of bed net impregnated with α-cypermethrin (INTERCEPTOR®) with washing was evaluated. The washing procedure and bioassay tests were carried out according to the WHO-recommended methods. Malaria vector, An. stephensi was exposed to impregnated bed net for three minutes and then mortality measured after 24 h recovery period. Knockdown was also measured according to the logarithmic times. Result of cone bioassay method showed that bioefficacy of α-cypermethrin decreased from 100% in unwashed to 15% in 20 washes. KT(50) was measure as one minute in one wash and increased to 40 min in 20 washes. Findings of this study provide guideline for malaria vector control authorities and people using pyrethroid-impregnated bed nets.

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Supelco
氯氰菊酯, PESTANAL®, analytical standard
Supelco
顺式氯氰菊酯, PESTANAL®, analytical standard
Supelco
氯氰菊酯, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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氯氰菊酯 溶液, 100 μg/mL in acetonitrile, PESTANAL®, analytical standard