查询词典 dyes

Shenyang Research Institute of Chemical Industry, Shenyang 110021, China Abstract: Spectrophotometric analysis showed that the peak absorbance for food dye of Allura Red and biological dye of Ponceau-G occurred at 501 and 510 nm. In sunlight after 2, 4, 6, 8, 10 hours, the decomposition rates of Allura Red and Ponceau G were between 2.4 to 5.8% and 3.4 to 10.8%, so they are stable in sunlight. The recovery rates on cottons and glasses were very high, so they are easily recoveried from targets. Further studies showed that the recovery rates of two dyes on the leaves of wheat, cabbage, cucumber and tomato were different, so it need previously determine the recovery rate of tracer on the target crop to adjust the result. Field experiment showed it was easy to measure the pesticide spray distribution of high volume spay and low volume spray to use Allura Red and Ponceau-G as tracers.

沈阳化工研究院，沈阳 110021 摘要：光谱分析表明，食品染色剂诱惑红和生物染色剂丽春红-G的最大吸收波长分别为501 nm和510 nm ；在连续2、4、6、8、10 h阳光照射下，分解率分别在2.4%~5.8%和3.4%~10.8%之间，见光稳定性良好；两种染色剂在棉花叶片和玻璃片上的洗脱回收率都很高，说明易于从靶标上洗脱下来；进一步测定表明，两种染色剂在小麦、甘蓝、黄瓜、番茄叶片上的洗脱回收率各不相同，所以对准备进行测试的作物应先做一次洗脱回收率试验，用以校正测试结果；田间应用表明，用两种染色剂做示踪剂，可以方便地测定常量喷雾和低容量喷雾过程中农药在麦田的沉积分布情况。

Guest-Host display with positive contrast may be obtained by using these dyes.

应用这类染料可以得到正型宾主显示。

Nanocolorants are new kind of colorants which can combine the advantages of both pigments and dyes, and will be promisingly applied to photoelectric high-tech fields.

纳米色料是一类可以结合颜料和染料两者优点的新型色料，除了在传统的着色领域具有独特优势外，在光电高新技术领域也具有广阔的应用前景。

Soybean proteide fibre is that a kind of regenerates plant proteide fibre , regenerates and fibre similarity other , may return thick fluid by singeing, bleaches , dyes , arranges.

大豆蛋白质纤维是一种再生植物蛋白质纤维，与其他再生纤维相似，可通过烧毛、退浆、漂白、染色、整理。

In the biochemical analysis aspect, it is first time to use the simple fluorescence spectrophotometer to determine the protein in human serum by red alizarin as the probe of the RLS. The experiment shows that the system HSA-red alizarin has the maximum intensity of the RLS in Britton-Robison buffer of pH4.10 at maximum wavelength of about 360nm. The method has better linear range within 0.040-10.0ug/mL, determination limit is 0.040ug/mL. Moreover, We have selected three other dyes of chromotrope 2R, acid chrome dark blue and pyrocatechin violet as the probes of the RLS in determining protein in human serum and achieving satisfactory results.

在生化分析方面，作者首次使用简易960型荧光分光光度计，利用茜素红作为共振光散射光谱探针对人血清中的蛋白质含量进行了测定，测定结果显示在pH4.10的Britton-Robinson缓冲溶液，波长360nm处出现最大的共振光散射强度，其线性范围为0.040～10.0μg／mL，检出限为0.040μg／mL；另外，作者还筛选了其他三种可用作蛋白质测定的共振光散射光谱探针的有机染料：变色酸2R、酸性铬深蓝、邻苯二酚紫，并深入研究了测定的适宜条件和干扰情况，将这三种有机染料用于人血清中蛋白质含量的测定，均取得了满意结果。

In this paper, two-step reaction are selected to synthesize three-pyrrole based BODIPY fluorescent dyes using simple pyrrole as starting material.

本文中采用两步式反应路线，由简单的吡咯为起始原料得到三吡咯骨架的BODIPIY荧光染料，讨论了可能的反应机理，并研究了化合物1和2的光谱性能及光稳定性。

Known as the last Darayee weaver in Yazd, Iran, Ramazan Rezayee is creating a rich and symbolic Persian rug. Pressing down the wooden panel to secure the colorful threads, Ramazan begins this traditional art. With each shuttle, the wooden machine clicks away looming together the silken threads of natural tones dipped in pots of red, green and blue dyes. He has been doing this ancient skill for 70 years and intends to keep this artistry alive till his final breath.

伊朗亚兹德的拉玛桑E瑞萨伊，是最后的达拉依编织师傅，编织著华丽、充满象徵性的波斯地毯，压下木条，拉紧五彩缤纷的线，拉玛桑开始这项传统的艺术，木制编织机的梭子，将红绿蓝色丝线编织起来，这项古老的技术，他已经做了70年，也要将这个手艺继续存活，直到他咽下最后一口气。

Through the results of the true reflectance, the quantum efficiency of fluorescent dyes has been studied.

比较了两种不同的荧光染料光学模型的差异，并比较了两种荧光染料模型求解出的荧光量子效率的值。

The country has prohibited clothes manufacturers from using resolvable toxic aromatic amine dyes for clothes production.

国家已经禁止服装制造商在生产衣服的时候使用有毒的可溶性芳香胺染料。

While resolvable toxic aromatic amine dyes can make the clothes more brightly-colored, and maintains the color for a longer time.

而有毒的可溶性芳香胺染料则可以使衣服颜色鲜亮，并能使颜色鲜亮维持的更久。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。