地乐酚三乙醇胺盐标准品

染发剂中对苯二胺等染料的HPLC测定方法采用《化妆品卫生规范》所规定的液相色谱标准检测方法，对氧化型染发剂中包括对苯二胺和邻苯二胺在内的八种染料进行检测。[size=4][b]分析方法[/b]色谱柱：Shimadzu Shim-pack VP-ODS 4.6×150mm 5μm检测波长：280nm 流动相：乙腈:（水:三乙醇胺＝98:1）＝5:95 流速：1mL/min 柱温：室温进样量：10μL洗脱方式：等度洗脱。[/size][size=4]流动相中使用了三乙醇胺，比较少见，它在分析苯胺类化合物有什么突出的优点吗？可否用三乙胺替代？[/size][img]http://ng1.17img.cn/bbsfiles/images/2010/05/201005082043_217200_1638724_3.jpg[/img][img]http://ng1.17img.cn/bbsfiles/images/2010/05/201005090755_217230_1638724_3.jpg[/img]

[color=#444444]以下是SDBS数据库上三乙醇胺的红外光谱，请问下面框框里4,5,7,81,25...这些处理代表什么？另外，三乙醇胺红外谱图怎么解析，下面框框里列出来都是哪些基团的振动呢？谢谢。[/color][color=#444444][img=,690,529]https://ng1.17img.cn/bbsfiles/images/2019/06/201906211449100110_1930_1676638_3.jpg!w690x529.jpg[/img][/color]

三乙醇胺色谱图，溶剂乙醇，原来三乙醇胺峰在4-5min之间，现在……请大神给看看这是怎么回事，如何处理？刚换的柱子。[img=,690,517]https://ng1.17img.cn/bbsfiles/images/2019/07/201907121319396874_8777_1782490_3.jpg!w690x517.jpg[/img]

宫志鹏:建立了反相高效液相色谱法测定三乙醇胺酯中单、双、三酯含量的方法。采用Diamonsil C18色谱柱(250X4．6mm，5I，tm)，柱温30。C，溶剂为氯仿，流动相为甲醇和氯仿，检测器为电雾式检测器。通过讨论k’值和兄与流动相极性、流速和柱温的关系，确定了梯度洗脱程序，30rain内三乙醇胺单、双、三酯得到了较好的分离。三乙醇胺单、双、三酯在20．500mg·L．1范围内线性关系良好，线性相关系数分别是0．9980、o．9991和0．9913，最低检出质量浓度分别(3s／N)是1．0mg·L～、1．5mg·L-1和1．5mg·L-1，相对标准偏差(n=6)分别是2．45％、1．81％ 和1．98％。优化了反相高效液相色谱测定三乙醇胺酯季铵盐中单、双酯混合季铵盐与三酯季铵盐含量的方法。样品经过乙醚萃取处理，采用Inertsil CN．3色谱柱(250× 4．6ram，5Irtm)，柱温50。C，溶剂为正丙醇，流动相为正丙醇和水，梯度洗脱， 检测器为电雾式检测器，并采用液相色谱．质谱法确证，15min内三乙醇胺单、双酯混合季铵盐与三酯季铵盐得到了较好的分离。单、双酯混合季铵盐与三酯季铵盐在25．750mg·L。1范围内线性关系良好，线性相关系数分别是O．9966和O．9913，检出F艮(3s／y)是0．8mg·LJ和10．0mg·L一，相对标准偏差(n=6)分别是0．5 l％和12．38％。：三乙醇胺酯，三乙醇胺酯季铵盐，梯度洗脱，高效液相色谱，电雾式检测器Abstract :An analytical method of reversed phase hi曲performance liquid chromatography(RP-HPLC)was developed for determination of triethanolamine mono-，di—and triesters．Established a gradient elution programme by analyzing the relationship of k’，R and elution rate，elution polarity,temperature． Triethanolamine mono-，di-and triesters were detected and separated successfully by Diamonsil Cls column(250x4．6mm，59m)and column temperature of 30"C，with chloroform as solvent and methanol-chloroform as the mobile phase in gradient elution and with a Charged aerosol deteror．The linear ranges of triethanolamine mono一，di-and triesters were 20-500 mg‘L。(r=O．9980)，20-500 mg·L。1(r=0．9991)and 20—500mg‘L_(r=0．9913)respectively．The measurable lowest limits were 1．0rag‘L一， 1．5mg’L—and 1．5mg‘L—and the RSDs were 2．45％．1．8 1％and 1．98％respectively． An analytical method of reversed phase hi曲performance liquid chromatography(RP—HPLC)was optimized for determination of triesterquats in 1 5min．Mono-，diesterquats mixture and triesterquats were detected and separated ccessfully by Inertsil CN一3 column(250x4．6mm，5pm)and column temperature of 30。C．with n—propanol as solvent and n—propanol—water as the mobile phase in gradient elution and with a charged aerosol deteror．The linear ranges of mono一， diesterquats mixture and triesterquats were 25-750mg·L-1(FO．9966) and 25-750mg’L叫(r=0．9913)respectively．The measurable lowest limits were 0．8mg‘L。1 and 10．0mg。L-1 and theRSDs were 0．51％and 12．38％respectively． Key words：triethanolamine esters，esterquats，gradient elution，high performance liquid chromatograph，charged alesol detectionhttp://ng1.17img.cn/bbsfiles/images/2012/08/201208131731_383588_2352694_3.jpghttp://ng1.17img.cn/bbsfiles/images/2012/08/201208131732_383589_2352694_3.jpghttp://ng1.17img.cn/bbsfiles/images/2012/08/201208131732_383590_2352694_3.jpghttp://ng1.17img.cn/bbsfiles/images/2012/08/201208131732_383591_2352694_3.jpghttp://ng1.17img.cn/bbsfiles/images/2012/08/201208131732_383592_2352694_3.jpg