当期目录

2017年, 第47卷, 第12期　刊出日期：2017-12-22 上一期    下一期

基础研究

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含疏水侧链聚氨酯表面活性剂的制备及其乳液聚合应用研究 Preparation of polyurethane surfactants with hydrophobic side chains and their application in emulsion polymerization 王媚媚, 杨彦春, 胡昕, 彭化南, 郑劼 2017 (12):  663-667.  doi: 10.13218/j.cnki.csdc.2017.12.001 摘要 ( 278 )   PDF(1806KB) ( 261 )   以异佛尔酮二异氰酸酯、二羟甲基丙酸和单硬脂酸甘油酯为主要原料,通过改变原料配比制备一系列含疏水侧链聚氨酯表面活性剂。采用FT-IR和1H NMR对产物的结构进行了表征。以单体质量5%的聚氨酯表面活性剂制备了固含量(质量分数)为35%的聚甲基丙烯酸甲酯-co-聚丙烯酸丁酯乳液,研究了预聚物n(-NCO)/n(-OH)对表面活性和乳液聚合应用的影响。结果表明,当预聚物n(-NCO)/n(-OH)=1.07时,含疏水侧链聚氨酯表面活性剂水溶液具有最低表面张力值33.24 mN/m。该聚氨酯表面活性剂用于制备聚丙烯酸酯乳液可得到核壳结构乳胶粒子,当预聚物n(-NCO)/n(-OH)=1.11时,制备得到的乳胶粒子最小,直径约为75 nm。 A series of polyurethane surfactants with hydrophobic side chains (WPU) were synthesized by changing the ratio of the reactants and using isophorone diisocyanate,dimethylolpropionic acid and glyceryl monostearate as main starting materials.Structure of the product was characterized by FT-IR and 1H NMR.Poly-(methyl methacrylate-co-butyl acrylate) emulsion with 35% (mass fraction) solid content was prepared with the polyurethane surfactants (5% vs.mass of overall monomers).The effects on surface activity and emulsion polymerization application of the ratio n(-NCO)/n(-OH) of the pre-polymerized material were studied.Results show that the lowest surface tension of polyurethane solution achieves 33.24 mN/m when the ratio n(-NCO)/n(-OH) is 1.07.The structure of polyacrylate emulsion particulates prepared using polyurethane surfactants is shell-core type.When the ratio n(-NCO)/n(-OH) is 1.11,the smallest particulates can be obtained,and their diameter is about 75 nm. 参考文献 | 相关文章 | 计量指标

科技讲座

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离子液体表面活性剂的合成与应用(Ⅻ)——微乳液 Synthesis and application of ionic liquid surfactants (Ⅻ) Microemulsions 杨许召, 张盈盈, 邹文苑, 李迎宾, 王军 2017 (12):  668-672.  doi: 10.13218/j.cnki.csdc.2017.12.002 摘要 ( 282 )   PDF(2281KB) ( 387 )   离子液体表面活性剂替代传统表面活性剂构建微乳液具有明显的优势,且结构可设计;所制备的微乳液分为单相微乳液和多相微乳液,其相图主要包括拟三元相图和“鱼状”相图;微乳液的微观结构,如液滴尺寸、相互作用或极性等,可通过电化学技术、动态激光散射、小角X射线散射等技术来确定。此类微乳液可广泛应用于纳米粒子制备、聚合反应、金属离子萃取等领域。 Ionic liquid surfactants show obvious advantages over traditional surfactants in the construction of microemulsions and the structure can be designed purposely according to the requirement.The prepared microemulsions can be classified as singlephase microemulsions and multiphase microemulsions,for which the phase diagrams mainly cover pseudo ternary phase diagrams and “fish-like” phase diagrams.The microstructure of microemulsions,such as droplet size,interaction or polarity,can be determined by electrochemical techniques,dynamic laser scattering,small angle X-ray scattering and so on.Ionic liquid surfactant microemulsions can be widely used in the fields of nanoparticle preparations,polymerization,metal ion extraction,etc. 参考文献 | 相关文章 | 计量指标

开发与应用

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水热辅助相转移催化水解十二烷基苄氯的研究 Investigation for hydrolysis of dodecylbenzyl chloride by hydrothermal-assisted phase transfer catalysis 孙美玲, 胡学一, 方云, 方银军 2017 (12):  673-676.  doi: 10.13218/j.cnki.csdc.2017.12.003 摘要 ( 272 )   PDF(761KB) ( 296 )   采用超声、微波、水热、相转移催化等多种方法对n-十二烷基苄氯的碱性水解反应进行初步尝试,其中相转移催化与水热条件偶合水解获得了成功。优化的工艺条件为:十二烷基二甲基苄基氯化铵为相转移催化剂,在130 ℃下碱性水热反应16 h,此条件下n-十二烷基苄醇的产率达到93.6%。 Hydrolysis of n-dodecylbenzyl chloride was preliminarily tested separately by means of ultrasonic wave,microwave,hydrothermal and phase transfer catalysis,and finally the hydrothermal-assisted phase transfer catalysis succeeded.Based upon the test results,the conclusion is to use dodecyldimethylbenzyl- ammonium chloride as the phase transfer catalyst and the reaction is conducted under alkaline condition with hydrothermal assistance at 130 ℃ for 16 h.The yield achieves 93.6%. 参考文献 | 相关文章 | 计量指标

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异构十醇聚氧乙烯醚与阴离子表面活性剂复配体系的性能研究 Study on performance of blend systems composed of isodecyl alcohol ethoxylates and anionic surfactants 张瑞林, 孙永强, 郭建国 2017 (12):  677-680.  doi: 10.13218/j.cnki.csdc.2017.12.004 摘要 ( 417 )   PDF(2294KB) ( 275 )   对异构十醇聚氧乙烯醚(IC10EOn)、十二烷基苯磺酸钠(LAS)和脂肪醇聚氧乙烯(2)醚硫酸钠(C12~14E2S)的水溶性进行分析,研究了LAS和C12~14E2S对异构十醇聚氧乙烯(8)醚(IC10EO8)浊点的影响,同时考察了IC10EO8与LAS和C12~14E2S复配体系的润湿力、泡沫性能、去污力等。结果表明,在25 ℃下,当IC10EOn的EO加合数为3,8和9时可与水以任意比例互溶,不会形成凝胶;在IC10EO8与LAS和C12~14E2S的复配体系中,当LAS和C12~14E2S的质量分数大于0.6%时,浊点迅速上升;IC10EO8与LAS和C12~14E2S的质量比在3∶1~1∶3范围内,复配体系的润湿性能优于单一表面活性剂,当IC10EO8与LAS和C12~14E2S的质量比为1∶1时,润湿性能最佳;IC10EO8的泡沫性能较差,随着阴离子表面活性剂的含量增加,复配体系起泡力逐渐增强,泡沫稳定性呈不规则变化;加入一定量的阴离子表面活性剂可提高IC10EO8的去污力。 The water solubility of isodecyl alcohol ethoxylates (IC10EOn),sodium dodecyl benzene sulfonate (LAS) and sodium fatty alcohol ether sulphate (C12~14E2S) was measured.The effect of LAS and C12~14E2S on the cloud point of IC10EO8 was studied,while the performance of blend systems composed of LAS,C12~14E2S and IC10EO8,such as wetting power,foaming performance and detergency were examined.Results show that there is no gel phase formed in the solution of IC10EO3,IC10EO8 and IC10EO9 at 25 ℃.The cloud point of the blend systems increases rapidly when the mass fraction of LAS or C12~14E2S is higher than 0.6%.The wetting power of the blend systems is better than that of the single surfactant when the mass ratio of IC10EO8 and LAS or C12~14E2S ranges from 3∶1 to 1∶3.The blend systems show best wetting power when the mass ratio of IC10EO8 and LAS or C12~14E2S is 1∶1.Because of poor foaming power of IC10EO8,the foaming power of the blend systems increases with the increasing content of LAS or C12~14E2S,while the variation of foam stability is irregular.The detergency of IC10EO8 is enhanced by adding anionic surfactant. 参考文献 | 相关文章 | 计量指标

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月桂酰丙氨酸钠的复配性能研究 Study on surfactant blending performance of sodium N-lauroylalanine 耿二欢, 洪玉倩, 王文德, 李忠红, 芦佳林 2017 (12):  681-684.  doi: 10.13218/j.cnki.csdc.2017.12.005 摘要 ( 502 )   PDF(769KB) ( 416 )   用月桂酰丙氨酸钠(SLA)分别与脂肪醇聚氧乙烯醚硫酸钠(AES)、椰油酰胺丙基甜菜碱(CAB)和烷基糖苷1214(APG)进行复配,测定了复配体系的表面活性、泡沫性能、润湿性能和钙皂分散性能。结果表明:单一SLA的表面活性优于其他3种表面活性剂,复配体系的表面活性总体随SLA加入量的增加呈上升趋势;SLA的泡沫性能和钙皂分散性能较差,但是通过复配,SLA的两个性能均得到改善;当SLA与AES、CAB和APG三者的质量比均在5∶1时,复配体系的润湿力达到最大,均产生协同作用。 The blends of surfactant sodium N-lauroylalanine (SLA) separately with sodium polyethoxy fatty alcohol sulfate (AES),cocoamidopropyl betaine (CAB) and alkyl polyglucoside 1214 (APG) were prepared.Their surface activity,foaming performance,wetting power and lime soap dispersing power were investigated.Results show that SLA displays a better surface activity than that of AES,CAB and APG;the surface activity of the blend systems displays an upgrading trend with the increasing dosage of SLA;the foaming performance and lime soap dispersing power of the SLA are poor,but by blending,both performance of SLA can be improved.When mass ratios SLA∶AES,SLA∶CAB and SLA∶APG are all at 5∶1,the wetting power of all the blend systems reach the maximum.Such results show that there is synergistic effect between the individual surfactants. 参考文献 | 相关文章 | 计量指标

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烷基糖苷对CO2驱泡沫的影响研究 Effect of alkyl polyglycoside on foaming performance of CO2 foam oil-displacing agent 马涛, 王友启, 齐义彬 2017 (12):  685-688.  doi: 10.13218/j.cnki.csdc.2017.12.006 摘要 ( 289 )   PDF(733KB) ( 263 )   以起泡体积、半衰期为指标,研究了疏水基链长对烷基糖苷(APG)形成CO2泡沫的性能。结果表明,APG的疏水链越长泡沫越稳定,APG0814的起泡性能优于其他链长APG。研究了质量浓度对APG0814泡沫性能的影响,当APG0814的质量浓度为3 g/L时,形成的CO2泡沫最稳定;质量浓度越高,起泡体积越大。通过物理模拟实验研究了气液比、实验压强对APG0814形成的CO2泡沫降低气、水流度的影响,结果表明,气液比为2∶1时,CO2、水流度降低幅度最大;实验压强越高,CO2、水流度降低幅度越大。 The performance of CO2 foam formed by alkyl polyglycoside (APG) with different alkyl chain length were studied with foam volume and half-life as the criterion indices.Results indicate that the longer the hydrophobic chain length of APG,the higher stability of the foam.The foaming performance of APG0814 is superior to that of other APGs.The influence of mass concentration of APG0814 on the foaming performance was examined.The CO2 foam formed by APG0814 at 3 g/L shows the highest stability.The higher mass concentration,the larger foam volume.Physical simulation experiments were carried out to study the influence of the gas-liquid ratio and the experimental pressure to the mobility decreasing of CO2 and water for the CO2 foam formed by APG0814.Results indicate that when the gas-liquid ratio is 2∶1,the range of mobility reduction of CO2/water achieves the highest.The amplitude for reduction of CO2/water mobility increases with the increase of pressure. 参考文献 | 相关文章 | 计量指标

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基于烷基糖苷体系石膏发泡剂的复配研究 Blending of gypsum foaming agents based on alkyl polyglucosides 陶源, 张威, 王丰收 2017 (12):  689-693.  doi: 10.13218/j.cnki.csdc.2017.12.007 摘要 ( 446 )   PDF(1428KB) ( 461 )   以烷基糖苷(APG)为发泡剂主组分,通过与其他表面活性剂复配,并选用聚合物羟丙基甲基纤维素(HPMC)、聚乙二醇(PEG)和聚乙烯醇(PVA)作为稳泡剂,进行石膏发泡剂复配研究。通过测定发泡剂的发泡倍数、泡沫稳定性、泌液比例的变化评价其发泡和稳泡性能。结果表明,APG与十一烷基咪唑啉(UIZ)和PVA复配,具有较优的发泡和稳泡性能。较优的条件为:m(APG0810)∶m(APG1214)∶m(UIZ)=4∶1∶2,PVA用量为聚合物与表面活性剂总质量的10%,发泡剂质量分数为0.2%,1 800 r/min下搅拌3 min。在此条件下,静置1 min的发泡倍数为4.33,15 min仍能保持在3.12。该发泡剂具有较优的发泡、稳泡和抗泌液性能。 The formulation of gypsum foaming agents using alkyl polyglucosides (APG) as the main surfactant and blended with other surfactants,such as cocoamidopropyl betaine (CAB35),2-undecylimidazoline (UIZ) and sodium alcohol ether sulphate (AES) as well as foam stabilizers such as hydroxyl propyl methyl cellulose (HPMC),polyethylene glycol (PEG) and polyvinyl alcohol (PVA) were investigated.The foaming multiple,foam stability,and bleeding ratio of the various blends of APG,were measured to evaluate their foaming and foam stabilizing performance.Results show that APG blending with UIZ and PVA displays better foaming performance than the others.The recommended conditions are as following:m(APG0810)∶m(APG1214)∶m(UIZ)=4∶1∶2,and PVA accounted for 10% (w/w) of total.At the mass fraction of 0.2%,after 3 min stirring under 1 800 r/min,this recommended blending system shows foam multiple as 4.33 after 1 min,and the foam multiple can maintain 3.12 even after 15 min. 参考文献 | 相关文章 | 计量指标

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乳制品设备原位清洗低泡清洗剂的制备 Preparation of the low foam cleaning agent for in situ cleaning of dairy equipment 付东, 李鹏, 吴琼, 张晓臣, 谢洋, 隋新 2017 (12):  694-697.  doi: 10.13218/j.cnki.csdc.2017.12.008 摘要 ( 267 )   PDF(711KB) ( 253 )   以烷基糖苷(C08~10APG)、脂肪醇聚氧乙烯醚硫酸钠(AES)、碳酸钠(Na2CO3)、硅酸钠(Na2SiO3)、柠檬酸钠(Na3C6H5O7)及戊二醛为主要成分配制乳制品设备原位清洗低泡清洗剂。通过摇瓶泡沫体积法筛选表面活性剂组分的配方量,通过正交试验确定助剂配方量。结果表明:当C08~10APG/AES的质量比为3∶1,总活性物含量为4%,质量分数为0.4%的二甲基硅油为消泡剂时发泡力较低,当Na2CO3/Na2SiO3/Na3C6H5O7质量比为6∶5∶9,助剂总质量分数为20%时,所配制的清洗剂去污率达到95.3%,且具有很好的稳定性。杀菌试验结果表明:含戊二醛0.001%的样品对大肠杆菌和金黄葡萄球菌的杀灭率分别为92.33%和93.14%,放置7 d后对二者的杀灭率分别为91.08%和92.93%。 The low foam cleaning agent for in situ cleaning of dairy equipment was formulated with alkyl polyglycoside (C08-10APG),sodium polyethoxy fatty alcohol sulfate (AES),sodium carbonate (Na2CO3),sodium silicate (Na2SiO3),sodium citrate (Na3C6H5O7) and glutaraldehyde as main constituents.The composition and dosage of the surfactants were screened and determined in accordance with the standard of low foam volume requirement through the Shaking-flask method.The formulation of additives was decided by using orthogonal experimental design results.The laboratory test results show that with the mass ratio of C08~10APG to AES as 3∶1 and the total surfactant content as 4%,foaming power of the detergent product achieves rather lower level with a mass fraction of 0.4% dimethicone as the defoaming agent.With the mass ratio of Na2CO3/Na2SiO3/Na3C6H5O7 as 6∶5∶9 as well as the total additives mass fraction of 20%,the detergent product offers a high cleaning rate of 95.3% with high stability.The antibacterial test results show that the sterilization rate for Escherichia Coli and Staphylococcus aureus of the sample with 0.001% glutaraldehyde achieves 92.33% and 93.14% respectively,as well as 91.08% and 92.93% respectively after 7 d. 参考文献 | 相关文章 | 计量指标

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“太空人参酵母”对在模拟微重力下人原代成纤维细胞的保护作用 Protective effect of “space ginseng yeast” on human primary fibroblasts under microgravity condition 宋肖洁, 史晓婷, 吴越 2017 (12):  698-702.  doi: 10.13218/j.cnki.csdc.2017.12.009 摘要 ( 341 )   PDF(3903KB) ( 273 )   通过多指标、多种实验手段考察“太空人参酵母”对人原代成纤维细胞的保护作用。结果表明,“太空人参酵母”能改善因微重力导致的细胞形态改变及存活率降低;能恢复细胞骨架蛋白Tubulin,胞外基质蛋白Integrin和Fibronectin的表达及有效排列;能抑制MMP-1表达异常。稀释20~500倍的“太空人参酵母”的保护作用较好,以稀释100倍的“太空人参酵母”的保护作用最为明显。 Through the multi-index parameters,a variety of experiments have been designed to verify the protection effects of “space ginseng yeast” on human primary fibroblasts.Results show that “space ginseng yeast” can improve the cell morphology and survival rate in the human primary fibroblasts induced by microgravity;restore the expression and arrangement of cytoskeletal protein like Tubulin,and extracellular matrix protein like Integrin and Fibronectin;as well as inhibit the abnormal expression of MMP-1.The protective effect of “space ginseng yeast”,which is diluted by 20 to 500 times,is better,and the protective effect of 100 times diluted “space ginseng yeast” shows the most obvious result. 参考文献 | 相关文章 | 计量指标

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基于主客观分析评价面膜材质对其性能的影响 Evaluating the effect of mask material on its performance based on subjective and objective analysis methods 尹月煊, 邱晓锋, 杨翠兰, 李诚桐, 赵华 2017 (12):  703-708.  doi: 10.13218/j.cnki.csdc.2017.12.010 摘要 ( 390 )   PDF(853KB) ( 319 )   通过安全评价、感官评价、仪器测试和问卷调查等主客观分析手段,对7种材质面膜的性能进行研究。结果显示,不同材质面膜的性能具有明显的差异性,其中棉纤维膜布面膜的刺激性较小,天丝膜布(a)面膜的感官特性强度较大且对皮肤MMV和Gray Index T影响较大,天丝膜布(b)面膜的整体喜好度评分较好。天丝膜布(a)和棉纤维膜布面膜的综合性能较好。 Performance of facial mask made from seven kinds of different materials were studied with various subjective and/or objective means such as safety evaluation, sensory evaluation, instrument test and questionnaire survey etc.Results show that the performance of seven kinds of facial mask are obviously different.The skin irritation of cotton facial mask is smaller.The sensory evaluation result of TENCELSKIN facial mask (a) displays higher characteristic strength, while its effect on values for human skin MMV and Gray Index T are bigger.The questionnaire scores for TENCELSKIN facial mask (b) are higher.In general, the comprehensive performance of TENCELSKIN facial mask (a) and cotton facial mask are better. 参考文献 | 相关文章 | 计量指标

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墨藻胶对皮肤水合及屏障功能的促进作用研究 Promoting effect of Gmoist Sea-Gel on skin hydration and barrier function 卢伊娜, 杨雅迪, 谢智勇, 田军 2017 (12):  709-712.  doi: 10.13218/j.cnki.csdc.2017.12.011 摘要 ( 779 )   PDF(854KB) ( 344 )   选择14例健康受试者对墨藻胶的保湿性能进行评价,发现连续使用墨藻胶7 d即可显著提升皮肤水分含量(CM),降低经皮水分散失(TEWL)。用墨藻胶处理角质细胞24 h后,通过实时荧光定量PCR技术研究与表皮水合及屏障相关的6个基因的mRNA表达水平,结果表明,墨藻胶可显著上调内披蛋白(INV)、转谷酰胺酶-1 (TG-1)、丝聚蛋白(FLG)和半胱天冬酶-14 (CASP-14)的mRNA表达水平。墨藻胶通过调节与表皮角化细胞套膜形成相关的基因表达,促进FLG降解成天然保湿因子,增强皮肤水合活性,改善皮肤屏障。 The moisturizing performance of Gmoist Sea-Gel (GSG) was evaluated based-upon 14 healthy volunteers.It was found that skin moisture content (CM) markedly increased and TEWL effectively decreased after Gmoist Sea-Gel (GSG) applied for 7 d.Then using real-time fluorescence quantitative PCR technology,HaCaT cells were cultured with GSG to study six genes expression level related to skin hydration and barrier function.Results show that GSG significantly promotes the INV,TG-1,FLG and CASP-14 mRNAs expression after 24 hours treatment.GSG can upgrade cornified cell envelope related genes expression,promote the degradation of filaggrin into natural moisturizing factors to strengthen skin hydration and barrier function. 参考文献 | 相关文章 | 计量指标

专论与综述

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头皮屑发生机理及头皮生物化学变化研究进展 Progress in research work field with respect to the mechanism of dandruff and biochemical changes of dandruff scalp 韦诗雨, 杜一杰, 李丽, 马来记, 董银卯 2017 (12):  713-718.  doi: 10.13218/j.cnki.csdc.2017.12.012 摘要 ( 632 )   PDF(1051KB) ( 687 )   综述了头皮脂膜与微生态、头皮屏障功能以及头皮生物化学变化等研究成果,总结出头皮屑人群与健康人群在头皮微生态、头皮皮脂分泌、皮脂组分及屏障相关蛋白质和脂质等方面的差异。推断皮脂分泌、屏障受损、微生态失衡这三种主要因素之间可能的相互作用关系,为更加科学有效的去屑洗发剂的研发提供新思路。 Research work achievements with respect to scalp lipid membrane and its microecology,scalp barrier function as well as biochemical changes of the scalp were reviewed.Differences between scalp of conventional persons and persons with abnormal dandruff in view of the changes of the scalp microecology,scalp sebum secretion,sebum components and the occurrence of the proteins and lipids related to the barrier were summarized.A comprehensive description of the mechanism of dandruff formation,and the possible interactions among the three major factors of sebum secretion,barrier damage and micro-ecological imbalance were provided,and it might infer a new idea for the development of more scientific and effective research work for preparation of anti-dandruff shampoo. 参考文献 | 相关文章 | 计量指标

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高效液相色谱法同时测定化妆品中香豆素等15种化合物 Simultaneous determination of coumarin and other 14 compounds in cosmetics by high performance liquid chromatography 高瑞芳, 李祥胜 2017 (12):  719-722.  doi: 10.13218/j.cnki.csdc.2017.12.013 摘要 ( 314 )   PDF(1055KB) ( 409 )   建立了同时测定化妆品中香豆素等15种化合物(双香豆素、4-羟基香豆素、香豆素、7-甲氧基香豆素、6-甲基香豆素、8-羟基补骨脂素、补骨脂素、异补骨脂素、8-甲氧基补骨脂素、5-甲氧基补骨脂素、新补骨脂异黄酮、补骨脂二氢黄酮、三甲沙林、欧前胡内酯和异欧前胡内酯)的高效液相色谱分析方法。样品经甲醇超声提取,以10 000 r/min离心5 min,取上清液过滤后测定。采用Phenomenex Luna C18 (2) (250 mm×4.6 mm,5 μm)色谱柱分离,以乙腈-0.1%乙酸溶液为流动相梯度洗脱,流速1.0 mL/min,柱温30 ℃。采用二极管阵列检测器多波长(210,250和280 nm)检测,标准曲线法定量。结果表明,香豆素等15种化合物的线性范围为0.1~10.0 mg/L,相关系数均大于0.999,检出限(LOD)为0.1~0.7 mg/kg。在3种加标水平下的平均加标回收率为90.5%~106.4%,相对标准偏差为0.7%~3.4% (n=6)。该方法准确、简便,适用于化妆品中香豆素等15种化合物的测定。 A high performance liquid chromatographic (HPLC) method was developed for the simultaneous determination of coumarin and other 14 compounds,including dicoumarol,4-hydroxycoumarin,7-methoxycoumarin,6-methylcoumarin,8-hydroxypsoralene,psoralen,angelicin,8-methoxypsoralen,5-methoxypsoralen,neobavaisoflavone,bavachin,trioxsalen,imperatorin and isoimperatorin.The samples were extracted with methanol under the help of supersonic wave and centrifuged at 10 000 r/min for 5 min.The supernatant was separated on a Phenomenex Luna C18 (2) (250 mm×4.6 mm,5 μm) column by gradient elution with acetonitrile-0.1% acetic acid solution as mobile phase at a flow rate of 1.0 mL/min and column temperature of 30 ℃.The analysis of 15 compounds was performed by HPLC with diode array detector at the wavelength of 210,250,280 nm,respectively.Identification of 15 compounds was achieved by retention time,and quantification analysis was performed by the calibration curve method.The method shows a good linearity in the range of 0.1-10.0 mg/L with correlation coefficients higher than 0.999.The limits of detection (LODs) for the 15 compounds are 0.1-0.7 mg/kg.The mean recoveries at three spiked levels are in the range of 90.5%-106.4% with RSDs of 0.7%-3.4%(n=6).The method is accurate and simple,and is suitable for the determination of 15 compounds. 参考文献 | 相关文章 | 计量指标