苯硫脲

  • 网络PTC;Phenylthiocarbamide;phenylthiourea
苯硫脲苯硫脲
  1. 测定了1008名(男510名,女498名;儿童679名,成人329名)汉族人的苯硫脲(PTC)尝味阈值。

    PTC taste threshold of 1008 Han people ( male 510 , female 498 ; children 679 , adult 329 ) was determined in Hebei province .

  2. 宁夏回族苯硫脲尝味能力的测定

    Determination of PTC Tasting Ability in the Hui Nationality of Ningxia

  3. 目的测定湖南侗族青少年苯硫脲(PTC)的尝味能力。

    Objective To determine the taste ability of Dong nationality juveniles to PTC in Hunan .

  4. 经熔点测定,HPLC/MS/MS,FTIR,UV及1HNMR等分析确定为二苯硫脲。

    The product was identified by melting point , HPLC / MS / MS , FTIR , UV and 1H NMR analyses .

  5. 然而,用熔点测定、HPLC/MS/MS,FTIR,UV和1HNMR等手段对此晶体进行分析,确定其为二苯硫脲。

    However , identified by melting point , HPLC / MS / MS , FTIR , UV and 1H NMR analyses , the pure crystal should be diphenyl thiourea .

  6. 本文采用Harris和Kalmus改良阈值法测定了内蒙古地区2034例(蒙古族998例,汉族1036例)苯硫脲尝味阈值。

    The taste threshold for Phenylthiourea among 2034 cases ( 998 cases for Mongolian , 1036 cases for Han ) in Inner Mongolia region were determined by means of Harris-Kalmus ~ 1 modified threshold .

  7. 常温常压下,用AlCl3作催化剂催化苯胺和CS2进行反应,可以高收率和高选择性地得到二苯硫脲。

    Under mild conditions , at room temperature and ambient atmosphere , diphenyl thiourea could be synthesized through the reaction of aniline and CS 2 over AlCl 3 catalyst with high yield and high selectivity .

  8. 探讨了合成二苯硫脲的新方法。以酸性树脂作催化剂在回流温度下使苯胺与CS2反应6h,二苯硫脲的收率达827%,选择性为100%。

    A new method to synthesize N , N ' - diphenyl thiourea ( DPTU ) from aniline and CS 2 was developed in the presence of acidic resin as catalyst under reflux temperature for 6 h with the yield of 82.7 % and the selectivity of 100 % .

  9. 二苯硫脲是重要的医药和染料的中间体。

    Diphenyl thiourea is an important intermediate of medicine and dyestuff .

  10. GC/MS解析中二苯硫脲的中性丢失

    Neutral Loss of Aniline in GC / MS Analysis of Diphenyl Thiourea

  11. 新疆地区七个民族苯硫脲味阈的测定

    Determination of phenylthiocarbamide ( ptc ) taste thresholds of 7 nationalities Xinjiang

  12. 内蒙古地区蒙古族和汉族苯硫脲尝味能力的测定

    Determination of Taste Sensitivity of Phenylthiourea in Mongolian And Han of Inner Mongolia

  13. 苯硫脲与其它物质苦味味觉遗传相关性阈值分析

    Threshold Studies on The Relativity of Bitter Taste Between PTC and Other Substances

  14. 二苯硫脲类化合物的粉末倍频性能研究

    Powder second harmonic generation of disubstituted diphenylthiourea derivative

  15. 中国不同民族中苯硫脲味盲基因频率的研究

    Distribution of Taste Sensitivity of Phenylthiocarbamide ( PTC ) of Various Nationalities in China

  16. 苯硫脲味盲基因型对苦涩蔬菜味觉能力的影响

    The influences on PTC taste genetype to the bitter and astringent vegetable sense of taste ability

  17. 云南白族及纳西族苯硫脲味盲频率的分析

    Analysis of Taste-Blindness Frequency for Phenyl-thiocarbamide in Bai and Naxi Nationalities in Province of Yunnan China

  18. 500例汉族青年苯硫脲尝味能力的测定

    Determination of the Taste Ability to Phenylthiocarbamide ( PTC ) in 500 Young People of Han Nationality

  19. 湖南侗族青少年苯硫脲尝味能力测定与分析

    Determination and Analysis of the Taste Ability of Teenages of Dong Nationality to Phenylthiocarbamide ( PTC ) in Hunan

  20. 体育系学生苯硫脲尝味能力与血型的研究结果表明,不同血型的大学生其行为有明显差异性,给学校管理人员和学生职业选择问题提出了参考意见。

    The researches reveal that there are significant differences in behavior among various blood type students , which gives a suggestion for school administrator 's and student 's professional selection .

  21. 实验结果表明二苯硫脲质谱裂解中可能发生了中性丢失,丢失了中性分子苯胺,生成的异硫氰酸苯酯分子离子由于π电子共轭而致稳。

    The results showed that neutral molecule of aniline may be lost in the cleavage of mass spectra , while the remainder molecular ion of phenyl iso-thiocyanate became steady due to the conjugate of π electron .

  22. 研究了苯异硫脲基乙酸(PTHA)用于Pd(Ⅱ)的萃取分离性能,包括萃取酸度、试剂用量、萃取容量、离子干扰等方面。

    Phenylthiohydantoic acid ( PTHA ) is prepared and the extraction separation of palladium is studied .

  23. 心肌显像剂锝-99m-胺苯缩硫脲的合成及其初步动物实验

    Myocardial imaging agent synthesis of Tc-99m-p-TPA-DTS and its primary animal experiment

  24. N′-(嘧啶-2-)苯甲酰硫脲的合成及其生物活性研究

    Synthesis and biological activity of N ′ ( pyrimidin 2 yl ) benzoylthioureas

  25. 含有1-苯基-3-苯甲酰基硫脲端基的开链冠醚的合成(Ⅱ)

    Synthesis of noncyclic crown ethers with 1 phenyl 3 benzoyl thiocarbamide as terminal groups (ⅱ)

  26. 介绍了新试剂N苯基N′(氨基对苯磺酸钠)硫脲(PPT)的合成方法。

    The synthesis of a new reagent N phenyl N ' ( sodium p aminobenzenesulfonate ) thiourea ( PPT ) is described .

  27. 合成了目标配合物:碘化双[3,4二甲氧基苯甲醛缩氨基硫脲]合锌(II),其结构通过单晶X射线衍射法确定。

    The target complex Bis - yd zinc ( II ) iodide has been synthesized and characterized by X - ray single - crystal structure analysis .

  28. 新试剂N-间甲苯基-N′-(氨基对苯磺酸钠)硫脲(MMPT)的合成及其在分析化学中的应用

    Synthesis of the New Reagent N m Methylphenyl N ′ ( Sodium p aminobenzene sulfonate ) thiourea ( MMPT ) and Its Applications in Analysis

  29. 新试剂N-苯基-N′-(氨基对苯磺酸钠)硫脲的合成及其测定微量铂(Ⅳ)的研究和应用

    Synthesis and application of the new reagent n-phenyl-n ′ - ( sodium p-aminobenzenesulfonate ) thiourea

  30. N-庚基-N′-(氨基对苯磺酸钠)硫脲对银的定性鉴定

    Qualitative identification of Ag ~ + with N-heptyl-N ′ - ( sodium p-aminobenzenesulfonate ) thiourea