To study the determination of sulfite in food by pararosaniline hydrochloric spectrophotometry, then according to the sample characteristic, the treatment select soak, ultrasonic and distill.

摘要通过对测定食品中亚硫酸盐过程进行研究，根据样品的特性不同对所采集的样品采用浸泡、超声和蒸馏三种前处理方法。

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The nanoprobe excites the sample with a strongly focused X-ray beam and collects the characteristic fluorescence signal that is re-emitted.

纳米探针通过聚焦强X射线激发样品，然后收集发射出的特征荧光。

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The pretreatment conditions of sample, background absorption interference, the detection limit and characteristic concentration were investigated.

对样品处理条件、背景吸收干扰、出限及特征浓度进行了考察。

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Consider a tasting where drinkers sample a beer with a particular characteristic (flavor from German hops, hop bitterness, smoked malt, amount of cherry juice, the options are endless) and rate the intensity of that characteristic.

FORBES: Beer On Trial: You Be The Jury