A description is given of the analytical method for the determination of the urea content in slow-release urea by the p-dimethyl aminobenzaldehyde spectrophotometry.

摘要介紹用對(duì)二甲氨基苯節(jié)醛分光光度法測(cè)定緩釋尿素中尿素含量的分析方法午夜激情亚洲专区。

Aminobenzoic acid in procaine hydrochlorid compound injections was determined by differential spectrophotometry and Glenn's method of orthogonal function.

復(fù)方鹽酸普魯卜因注射液是鹽酸普魯卡因和對(duì)氨基苯甲酸為主要成份的注射劑亚洲A级毛片，一用重氮化法必須分離后進(jìn)行測(cè)定〔'〕。

By using spectrophotometry method determinated the anthocyanindin and chlorophyll content in different parts of Prunus wilsonii leaves,results showed that,as time changes,anthocyanins content in different parts of the leaves showed a low-high-low change in trend,the analysis of variance,the difference is not significant,relations between anthocyanidin content in Prunus wilsonii leaves and the position of health was not obvious,anthocyanindin content in the same part are far greater than chlorophyll content,...

用分光光度法對(duì)紫葉稠李葉片不同部位的花青素和葉綠素進(jìn)行了測(cè)定肏逼免费视频，結(jié)果表明最新色色来资源网站，隨著時(shí)間的變化，不同部位葉片的花青素均呈現(xiàn)低-高-低的變化趨勢(shì)黄色一及亚洲，經(jīng)方差分析最新地址发布页福利影院S，差異性不顯著，說(shuō)明紫葉稠李葉片花青素含量跟著生的部位關(guān)系不明顯日本三级性爱视频；同一部位的花青素含量遠(yuǎn)遠(yuǎn)大于葉綠素含量欧美无遮挡指交视频，這也是紫葉稠李葉片在整個(gè)生長(zhǎng)季呈現(xiàn)紫紅色的原因。

In order to provide some scientific data for judging biological toxicity and bioavailability caused by heavy metals in sediments in Guilin, China, for the first time, the authors sampled sediments in different water areas in Guilin, and determined AVS by P-Amino dimethyl aniline dihydro chloride photometry through a set of acidification-ventilation-absorption AVS reaction unit, determined copper, lead, zinc, cadmium and nickel with tomic absorption spectrophotometry, mercury and arsenium with atomic fluorescence, and cipangopaludina cathayensis was selected as the tested species for bioavailability experiment.

首次以桂林水系沉積物為研究對(duì)象人人操人人摸2018，通過酸化－吹氣－吸收裝置911国产主播在线观看，用對(duì)氨基二甲基苯胺光度法測(cè)定沉積物中AVS含量，用原子吸收分光光度法測(cè)定SEM和間隙水中Cu、Pb乱熟女伦熟女的网站、Zn天天操天天拍、Cd、Ni含量美女网站是黄，用原子熒光法測(cè)定Hg性欧美13处交A片、As含量。

A UV\|spectrophotometry method was used to determine the content of brightener benzalacetone in potassium chloride zinc electroplating , and many factors affecting the UV absorption were studied such as pH, inorganic salt, sodium higher fatty alcohol polyoxyethylene sulphate, etc.

研究了酸度干干干干干干干干干干干干干干干干操、無(wú)機(jī)鹽久久噜、高級(jí)脂肪醇聚氧乙烯醚硫酸鈉等對(duì)氯化鉀型鍍鋅主光亮劑芐叉丙酮吸光度的影響。

NO content and NOS activity were assayed with benzidine fluorescence spectrophotometry.

NO含量和NOS活性采用聯(lián)苯胺熒光分光光度法測(cè)定亚洲精品中文涩。

Bromcresol burple - hexadecyldimethyl benzyl ammonium bromide spectrophotometry was used in the determination of anion surface active agent in wastewater from lotion industry or sewage.

采用溴甲酚紫-十六烷基二甲基芐基溴化銨法測(cè)定洗滌劑工業(yè)的生產(chǎn)廢水或生活污水中陰離子表面活性劑的含量影音先锋色网站。

The inhibitory effect of nickel to the reaction of H_2O_2 oxidizes bromocresol purple had been researched in the buffering medium of pH=8~9 and the method of inhibitory kinetic spectrophotometry for determining nickel had been set up.

發(fā)現(xiàn)了在 p H=8～ 9的緩沖介質(zhì)中，Ni2 +對(duì) H2 O2 氧化溴甲酚紫的反應(yīng)有明顯的阻抑作用九色国产。

Keywords Catalytic spectrophotometry, surfactant, bromocresol green, silver

本法是迄今為止催化光度法測(cè)定銀的最靈敏方法之一亚洲无码大黄片。

Surface seawater samples are pumped into a PVC tube enclosing an inner Teflon AF tube, which served as a long pathlength gas-permeable liquid-core waveguide for spectrophotometry. The Teflon cell contains a pH sensitive indicator-buffer solution consisting of bromothymol blue and sodium carbonate.

該傳感器采用Teflon AF 2400液芯波導(dǎo)管作為C02選擇透過性膜，該液芯波導(dǎo)管同時(shí)也是傳感器的比色池美国黄色肥女一级电影，我們采用溴百里酚藍(lán)和碳酸鈉(Na_2CO_3)溶液為主要成份的pH敏感指示劑作為緩沖溶液无码毛片区免费毛片。