浸酸

Ion chromatography analysis on the leachates shows that formate generally exists as dominant short-chain carboxylate species.

浸取液的离子色谱分析表明，大井银铜矿各矿化阶段的成矿流体中普遍存在以甲酸为主要物种的短链羧酸。

A method for the mercury thiocyanate spectrophotometric determination of chlorine in ore samples was reported in this paper. The sample was sintered with zinc oxide-sodium carbonate and then leached with water.

中文摘要：岩石样品经氧化锌-碳酸钠烧结预处理，用水浸取后澄清，取清液用硫氰酸汞间接分光光度法进行氯的测定。

The results showed an occurrence of phytotoxicity with clear dynamic patterns during Zanthoxylum bungeanum litter decomposition.

应用分解网袋法研究了花椒凋落物分解过程中（0、10、30 d和60 d）酚酸的释放动态及凋落物浸提液对花椒林地土壤化学性质的影响。

The article talks about crank crack of shearing machine caused by flakes through testing tower-shaped texture and fracture,dipping in less-acid solution and analyzing its microstructure.

分别进行了塔形发纹检验、显微组织分析、低倍酸浸试验及断口试验分析，确定出该曲轴中的主要缺陷为&白点&。

The experiment adopt capital: Thousand layers of tower entire grass crush , the sour water logging carries , centrifugal fliteration , concentration, neutralize , the organic solvent extracts , oppose an extraction , still organic menstruum of alkali liquor extracts , concentrates , extracts except steps such as miscellaneous , fading and highly valuing crystal from the thousand layers of a tower middle draw, pure fossil China fir alkali A.

本实验采用：千层塔全草粉碎、酸水浸提、离心过滤、浓缩、中和、有机溶剂萃取、碱液反萃取、再有机溶剂萃取、浓缩、萃取除杂、脱色和重结晶等步骤从千层塔中提取、纯化石杉碱甲。

In the recovery process of electroplating sludge, it researched on acid leaching process, N902—sulfonated kerosene extraction of copper, and copper sulfate stripping and the recovery.

对电镀污泥中铜的回收工艺进行研究，研究了酸浸过程、N902—磺化煤油萃取铜、硫酸反萃以及铜的回收。

Study on Nitrogen Forms in Chaohu Lake and Wabu Lake Sediments;2. Fluorine, one of the necessary trace elements of human beings is presented in the form s of inorganic and organic compounds in foods, such as sodium fluoride, silicon fluoride, and fluoroacetate etc.

文中阐述了食品中氟的赋存形态及其分析方法，研究了灰化、碱熔、微量扩散、氧瓶燃烧、酸浸提及高温燃烧水解等前处理方法提取氟的形态差异，并对食品中氟的分析提出了建议。

The experiment of extracting potassium from the potassium-rich shale by sulfuric acid in Chaoyang is completed.

针对朝阳地区富钾页岩进行酸浸提钾的实验研究。

It is studied that the mechanism of extracting potassium from the potassium-rich shale sample in Caoyang using sulfuric-fluoric mixed acid.

本文对朝阳地区的富钾页岩矿样在硫-氟混酸作用下浸出提钾的反应机理进行了系统的研究。

The results indicated that the optimal technique of distilling of hawthorn beverage was hawthorn ∶water=1 ∶6,heated under 8590℃for 30min and infused for 3 hours ; the optimal sweetener formula compound of the beverage was determined as follows: xylitol 5 %,aspartame 0.6‰,sodium cyclamate 0%,acesulfame potassium 0.12‰.

结果表明，山楂饮料浸提的最佳工艺为：山楂水为1∶6，加热温度8590℃，时间30min、浸渍3h；最适甜味剂配比为：木糖醇5%，蛋白糖0.6‰，甜蜜素0.0‰，安赛蜜0.12‰。其制品糖酸适口、风味浓郁、营养丰富。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。