用高效液相色谱法同时测定葡萄酒中4种色素含量方法的研究

为了建立同时测定葡萄酒中喹啉黄、坚牢绿、偶氮玉红（又名酸性红,二蓝光酸性红）和专利蓝等4种色素含量的高效液相色谱方法,采用样品除去乙醇,经水提取和过滤后,使用C18色谱柱（4．6×250mm,5μm）分离,以甲醇和乙酸铵（0．02mol／L）为流动相梯度洗脱,流速为1．0mL／min,二极管阵列检测器检测,波长410nm,柱温30℃。结果显示：4种色素的工作曲线在1．0～50．0μg／mL范围内浓度与峰面积呈良好的线性关系,相关系数r均〉0．999。以S／N=3确定各检出限：喹啉黄为0．23mg／kg,坚牢绿为0．37mg／kg,偶氮玉红为0．29mg／kg,专利蓝为0．15mg／kg。精密度（RSD,n=6）〈3．0％。回收率在91．5％～100．8％。说明该方法干扰小,灵敏度高,分离效果好,操作简便、快速和准确可靠。     

焦化中水中主要有机污染物在焦煤上的竞争吸附

采用紫外分光吸光度-联立方程法检测焦化废水混合模拟废水浓度,以二级出水中主要有机污染物--苯酚、吡啶、喹啉和吲哚为例,分析对比单一与同时竞争吸附下焦煤煤粉对焦化废水中主要有机污染物的吸附容量与吸附速率。研究表明：在竞争吸附中,吸附容量的顺序为苯酚>喹啉>吲哚>吡啶;混合体系焦煤煤粉的总吸附量与单组分体系吸附量之和基本相等。焦煤吸附喹啉可以用多分子层吸附模型描述,吸附苯酚、吡啶和吲哚属于单分子层吸附模型。吡啶和吲哚吸附稳定,不受其它组分浓度变化影响;苯酚不稳定,与喹啉存在吸附质间作用,有直接的吸附位点竞争。在竞争吸附中焦煤吸附苯酚、吡啶、喹啉和吲哚二级动力学模型比一级动力学模型有更好的回归效果。     

具有D-π-A结构硼氟染料的制备及光谱性能研究

以2-甲基-8-苯并咪唑基喹啉和4-甲酰基三苯胺为反应物,合成了硼氟荧光染料,并通过核磁共振氢谱、碳谱、质谱进行了结构鉴定。通过紫外-可见光吸收及荧光光谱测试表明,染料在非极性溶剂(甲苯)中的Stokes位移为96 nm,荧光量子产率为0.638;在极性溶剂(甲醇)中的Stokes位移为162 nm,荧光量子产率为0.003;在固态下呈现较强的荧光,Stokes位移为178 nm。     

锡铅焊料中磷的测定

以硝酸分解试样，在硫酸介质中以盐酸—氢溴酸挥发除去锡、砷、锑、铅呈硫酸铅沉淀，再以钼酸钠喹啉沉淀，沉淀经过量的氢氧化钠溶解，稀硝酸滴定。     

The viscosities and densities of selected organic compounds and mixtures of interest in coal liquefaction studies

Experimental measurements are presented for the density and viscosity of selected organic compounds and mixtures at ambient pressure (0.083 MPa) and at temperatures of 298, 318, 338, and 358 K. The compounds studied were decalin, 1-methylnaphthalene, tetralin, m-xylene, tetrahydrofuran, thiophene, quinoline 2,6-lutidine, and m-cresol. Measurements were also made on three mixtures of the compounds decalin, 1-methylnaphthalene, tetralin, m-xylene, and m-cresol. The experimental results are compared with predictions made using a modified corresponding states procedure called TRAPP. The density predictions for the individual compounds and mixtures are good in all cases. For the viscosity, however, the predictions are in reasonable agreement with experiment only for nonassociating compounds and mixtures at reduced densities less than 3. These results suggest that TRAPP may prove very useful as a screening test to distinguish between nonassociating and highly associating mixtures. Such a test would be extremely useful when dealing with mixtures of unknown composition, such as coal liquids.Paper presented at the Ninth Symposium on Thermophysical Properties, June 24–27, 1985, Boulder, Colorado, U.S.A.     

磷酸缓蚀剂的研究

采用失重法和电化学方法对碳钢在磷酸溶液中腐蚀行为及喹啉季铵盐等在磷酸中的缓蚀作用进行试验，结果表明，碳钢在磷酸中的腐蚀速率随磷酸浓度增大而增加，但在磷酸浓度大于４０％以上，碳钢腐蚀速率则随磷浓度增大而变化缓慢。喹啉季铵盐是较好的磷酸缓蚀剂，它与碘化物有协同作用，文中还讨论了缓蚀剂的作用机理。     

Synthesis and antibacterial activity of certain quinoline and quinazoline derivatives containing sulfide and sulfone moieties

Some aryl and/or heterocyclic mercaptans were allowed to react with 8-quinolyl chloroacetate (II), 8-quinolinoxyacetyl chloride (IV) and 3-(2′-chloroethyl)-2-methyl-3,4-dihydroquinazolin-4-one (X) in dry benzene and/or sodium hydroxide in absolute ethanol to give corresponding 8-quinolyl-α-mercaptoacetate (V), 8-quinolinoxythioacetate (VI) and 3-(2′-arylmercaptoethyl)-2-methyl-4-(3H)quinazolin-4-ones or 3-(2′-heterocyclicmercaptoethyl)-2-methyl-4(3H)-quinazolin-4-ones (XIa-h). The mercaptans V and XI were subjected to oxidation with hydrogen peroxide/acetic acid mixture (1:2) to afford the corresponding sulfones VII and XII. The structures of the synthesized compounds were elucidated by spectroscopic (IR and ¹H-NMR) and elemental analyses. Some of these compounds were tested for their antimicrobial activities in comparison with tetracycline as a reference compound.     

Controlled one-pot synthesis of RuCu nanocages and Cu@Ru nanocrystals for the regioselective hydrogenation of quinoline

RuCu nanocages and core–shell Cu@Ru nanocrystals with ultrathin Ru shells were first synthesized by a one-pot modified galvanic replacement reaction. The construction of bimetallic nanocrystals with fully exposed precious atoms and a high surface area effectively realizes the concept of high atom-efficiency. Compared with the monometallic Ru/C catalyst, both the RuCu nanocages and Cu@Ru core–shell catalysts supported on commercial carbon show superior catalytic performance for the regioselective hydrogenation of quinoline toward 1,2,3,4-tetrahydroquinoline. RuCu nanocages exhibit the highest activity, achieving up to 99.6% conversion of quinoline and 100% selectivity toward 1,2,3,4-tetrahydroquinoline.

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用煤灰作助滤剂测煤沥青的喹啉不溶分的研究

旨在探索一种用煤灰作助滤剂的方法，从理论上分析了助滤原理，并用大量试验来证实煤灰作助滤剂的可行性。结果表明：用煤灰作助滤剂，测定煤沥青的喹啉不溶分的过程中，可显著提高过滤速度，所得数据准确度高。     

对改质沥青的甲苯不溶物和喹啉不溶物生产控制

应用生产数据研究生产控制条件如何影响改质沥青的甲苯不溶物和喹啉不溶物的含量。