The field trials were done to study on the effects of nitrogen amount on the yield and nicotine content of sun-cured tobacco.

通过田间试验，研究了不同施氮量对晒烟烟叶产量和烟碱含量的影响。

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The effects of the concentration of sodium hydroxide solution, immersing temperature and the amount of salt added during distillation on the yield of nicotine were examined.

考察了浸提液的碱浓度、浸提温度和蒸馏加盐量对烟碱提取率的影响。

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The separated nicotine is twice vacuum distilled in protective nitrogen to obtain nicotine product with purity over 98 % at yield over 83 %.

分出烟碱，在氮气保护下进行两次真空蒸馏即可得到98％以上的烟碱产品，产率在83％以上。

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Promulgating the lowest possible nicotine yield could push more people to e-cigarettes or to quit altogether.

FORBES: E-Cigarettes Spark Interest Among Millennials

Check out the Market Blaster video above for a couple of stock ideas: Green Mountain Coffee Roasters for its hyper-growth that is suddenly on sale, and Altria, because the fat yield and the potency of nicotine addiction are good things for a portfolio regardless of the economic cycle.

FORBES: Looking For The Pony In The Market's Dung Heap