查询词典 vitriol oil

It is impossible to establish one method to applying for all of pesticides and samples, so different methods are introduced to analysis different categories of pesticides, according to different physico-chemical properties.11 Organochlorine Pesticides are detected by GC-ECD and extracted with 50ml acetone and 100ml petroleum aether in Solxhlet's extractor clean-up with oil of vitriol.

农药种类繁多，结构各异，建立一种方法适用于所有农药和样品难度极大，本文将常用农药按分子结构分为四类分别建立检测方法：采用索氏提取器，丙酮/石油醚(50：100，V：V)混合溶剂提取、磺化法净化、GC-ECD检测研究了11种有机氯农药在蔬菜、水果、粮食中残留，结果显示11中有机氯农药在五种样品上的5次重复平均回收率，从添加0.005到2.000mg/kg的回收率范围为92.4%—103.7%，平均回收率大于80%，变异系数范围在1.16—9.16%之间。

Once, when he was doing experiment, the train shook and then a bottle of oil of vitriol poured on the ground. The whole carriages were on fire. The chief conductor threw all his experimental supplies and made her ears deaf.

一次他正在做实验，火车一摇晃，一瓶浓硫酸掉到了地上，整个车厢都起火了，列车长把它的实验用品全都扔了，还打聋了他的耳朵。

3The product accepts to lead while making to join the measuring of oil of vitriol as 0.4 mls in the process of crocic acid the most ideal.

制备克酮酸的过程中加入浓硫酸的量为0.4ml时，产品收率最理想。

And our work is to synthesize the expandable graphite which has greater volume and lower sulfur content, with organic regent substituting for oil of vitriol and with some oxidants using to meet the need of the industry manufacture, to study the catalysis capability of the product.

我们的工作是改用有机介质逐步替换浓硫酸，在某些氧化剂的作用下制备出大膨胀体积，低硫含量的可膨胀石墨产品，使其符合工业生产需要，并对其催化性能进行初步研究。

Microwave irradiation is used to the synthesis of L-glutamic acid-γ-ethyl ester from L-glutamic acid and alcohol by using oil of vitriol as a catalyst.

对L-谷氨酸－γ-乙基酯的微波合成方法进行研究，采用HPLC法进行分析测定。

The sample was diluted by water containing a little amount of sodium chloride, and then extracted by hexane, purified by oil of vitriol to decrease impurity. The extracted solution was analyzed by GC-ECD and quantified by external standard method.

试样加水稀释，加入少量氯化钠，再用正己烷提取，浓硫酸净化样品，排除干扰杂质，以GC-ECD测定，外标法定量，六六六和滴滴涕在0.005~0.2μgmL^(-1)范围内，质量浓度与峰面积呈良好的线性关系。

Used thin-layer chromatography, outspread dose were CHC13: MeOH (8.5: 1.5) and CHC13: MeOH (7:1)(with a little ammonia and diethylamine), color reagent was 10% oil of vitriol. Observe the fluorescent spots and color sports.

通过薄层层析色谱的分析，分别用黄酮展开剂CHCl_3∶MeOH(8.5∶1.5)和生物碱展开剂CHCl_3∶MeOH(7∶1)薄层展开后，10％的浓硫酸显色，观察荧光和显色斑点。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失