铅色的

According to the direct ratio relationship in a certain range between the color degree of the organic solvent with Pb^2＋ and dithizone in the complex compound and the amount of the lead, the amount of the lead can be rapidly determined by way of the visual colorimetry.

再加入双硫腙的三氯甲烷溶液，根据Pb^2＋离子与双硫腙生成的配合物在有机溶剂中的颜色深浅与铅含量在一定范围内成正比的关系，用目视比色法即可快速判断出样品中的铅含量。

After the sample is dissolved and the disturbance eliminated, then dithizone and chloroform solution are added in the sample. According to the direct ratio relationship in a certain range between the color degree of the organic solvent with Pb2+ and dithizone in the complex compound and the amount of the lead, the amount of the lead can be rapidly determined by way of the visual colorimetric.

样品消解并消除干扰离子后，加入双硫腙的三氯甲烷溶液，根据铅与双硫腙生成的络合物在有机溶剂中的颜色深浅与铅含量在一定范围内成正比的关系，用目视比色法即可快速判断出样品中的铅含量。

Lead glass contains typically 18–35 mol % lead oxide, while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO.[2] Lead glass is desirable due to its decorative properties.

中国地质大学珠宝检测中心副主任杨明星："施华洛士奇主要是一个含铅的玻璃，因为让我们看上去五颜面六色，非常的漂亮，它主要就是含一定量的铅，所以它的色彩非常地强，那么它做成各种晶体之后，光线一折射过来，就五颜面六色地非常漂亮。"

If the first line of pigments for composite color or chemical pigments, due to pigments contain iron, lead ions, blue, black pigment may have light after removing traces of India, one and a half months after treatment again.

如果患者当初纹的色料为复合色料或化工色料，由于色料中含有铁离子、铅离子、蓝、黑色素祛除后可能有浅色痕印，一个半月后可再次进行治疗。

If the first line of pigments for composite color or chemical pigments, due to pigments contain iron, lead ions, blue, black pigment may have light after removing traces of India, one and a half months after treatment again.2.1064nm laser treatment of black and blue pigments, the operator to the treatment of patients with a brief description of the principles and after conditions avoid patients do not understand the surgery, postoperative reflect and recovery processes, unnecessary disputes.

假如患者当初纹的色料为复合色料或化工色料，由于色料中含有铁离子、铅离子、蓝、黑色素祛除后可能有浅色痕印，一个半月后可再次进行治疗。2、用1064nm激光治疗黑色及蓝色色素时，操作者向患者简要说明治疗原理及术中术后可能出现的情况避免由于患者不了解手术情况、术后反映及恢复过程，而产生不必要的纠纷。

First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.

本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt％、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍，再控制无电镀技术之制备参数包括：析镀时间、析镀温度，镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等，研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行，研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时，可得到最高铁含量Fe = 40.55 at％(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT，接著对其作一系列性质分析，最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益，结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准，且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。

The properties of a series of Pb-pheophytins were studied by HPLC and spectrometric assay.

5采用高效液相色谱法和动力学光度法分别研究了铅叶绿素的一些理化性质。

It can also be found in toys or other products painted with lead based tint.

其也存在于用含铅涂料的上色的玩具或其他产品中。

Methods The conditions of solvent extracting active ingredient from pueraria lobata were optimized,and evaluating indIcators were contents of puerarin,lead and mercury, which were determined by high performance liquid chromatography and atomic fluorescence spectrometry.

方法采用高效液相色谱法和原子荧光光谱法测定葛根提取液中葛根素和铅、汞元素的含量，以葛根素和铅、汞元素的含量为评价指标，对影响溶剂回流提取葛根有效成分的条件进行优化。

Strains, which were white or light brown when grew on the lead acetate media plates, were selected. Then, the different differential medium plates containing NaiS and as the only sulfur sources were used to select 24 strains, which grew well on plates, but didn't grow well on Na2SO3 plates.

选择在醋酸铅显色平板上菌落颜色为白色或浅棕色的菌株(H_2S产生少的菌株)111株，分别对应点接于以Na_2S和Na_2SO_3为唯一硫源的两种鉴别培养基上，选择在Na_2S培养基上菌落较大，同时在Na_2SO_3培养基上菌落较小或不生长的突变菌株24株。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。