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噴霧熒光示蹤劑回收率影響因素實(shí)驗(yàn)
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the Recovery Rate of Spraying of Fluorescent Tracers
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    熒光劑作為噴霧實(shí)驗(yàn)常用的示蹤劑,其回收率對(duì)實(shí)驗(yàn)結(jié)果的準(zhǔn)確性至關(guān)重要。設(shè)計(jì)了熒光示蹤劑回收率影響因素的實(shí)驗(yàn)方案,用若丹明WT和熒光素鈉作為熒光示蹤劑,分別在不同稀釋液和洗取液、氣象條件、遮蓋率、采樣時(shí)間和沉積載體上測(cè)試熒光示蹤劑回收率的變化情況。結(jié)果表明,在單因素試驗(yàn)中,其他條件相同的情況下,若丹明WT在典型陰天的回收率較高;熒光示蹤劑回收率隨遮蓋率增加而增加,隨采樣時(shí)間增加而降低;濾紙更適宜作為沉積載體。

    Abstract:

    The fluorescent is usually used as tracers for spraying deposit analysis in pesticide application study. The recovery rate of the tracers is significant for a reasonable explanation of the spraying performance. Experimental scheme was designed in this work and fluorescent was used as tracers. The scheme comprised of a few spraying factors and different environmental conditions. Rhodamine WT and fluorescein sodium were used for the recovery rate tests and weather condition, shading rate, sampling times and sampler feathers were considered as constraints. The experiments shown, on the condition of the same shading rate, sampling times and samplers, recovery rate of Rohdamine WT was higher than fluorescein sodium. If sampling time was fixed with the same deposition carrier, the increase of shading rate would increase the recovery rate of fluorescent tracer. If shading rate and deposition carriers were kept same, the increase of sampling time would decrease the recovery rate of fluorescent tracers. On the condition of the same shading rate and sampling time, filter papers were more suitable deposition carrier comparing to silver papers.

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袁雪,王俊,周舟,冀榮華,祁力鈞.噴霧熒光示蹤劑回收率影響因素實(shí)驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(10):54-57. the Recovery Rate of Spraying of Fluorescent Tracers[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(10):54-57.

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