Biotage 快速纯化制备液相色谱 Flash Isolera LS

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¥20万 - 30万

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Biotage

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型号

Isolera LS

荣誉奖项

产地

欧洲

上海鑫欣生物科技有限公司

银牌
第13年
一般经销商

营业执照已审核

留言询价电话询价

核心参数

应用级别： 实验室级别

仪器种类： 中低压制备液相色谱

流速范围： 50-500mL/min

流量精度： RSD≤0.5%

流量重现性： 1%

最大耐压： 145-200psi

波长范围： ±1nm

波长重现性： 1nm

基线噪声： 3×10-5AU

采集频率： 100

相关方案

综合制药/生物制药生物产业医疗/卫生石油/化工

库拉索芦荟叶皮中磷酸二酯酶检测方案(制备液相色谱)
The ethanolic extract of Aloe barbadensis Miller leaf skin showed inhibitory activity against phosphodiesterase-4D (PDE4D), which is a therapeutic target of inflammatory disease. Subsequent bioassay-guided fractionation led to the isolation of two new anthrones, 6′-Oacetyl- aloin B (9) and 6′-O-acetyl-aloin A (11), one new chromone, aloeresin K (8), together with thirteen known compounds. Their chemical structureswere elucidated by spectroscopic methods including UV, IR, 1D and 2DNMR, and HRMS. All of the isolateswere screened for their inhibitory activity against PDE4D using tritium-labeled adenosine 3′,5′-cyclic monophosphate (3H cAMP) as substrate. Compounds 13 and 14were identified as PDE4D inhibitors,with their IC50 values of 9.25 and 4.42μM, respectively. These achievements can provide evidences for the use of A. barbadensis leaf skin as functional feed additives for anti-inflammatory purpose.
制药/生物制药 2017-11-25
人体尿液中大麻素及其代谢产物检测方案(制备液相色谱)
Clandestine laboratories constantly produce new synthetic cannabinoids to circumvent legislative efforts,complicating toxicological analysis. No extensive synthetic cannabinoid quantitative urinary methodsare reported in the literature. We developed and validated a liquid chromatography–tandem mass spec-trometric (LC–MS/MS) method for simultaneously quantifying JWH-018, JWH-019, JWH-073, JWH-081,JWH-122, JWH 200, JWH-210, JWH-250, JWH-398, RCS-4, AM-2201, MAM-2201, UR-144, CP 47,497-C7,CP 47,497-C8 and their metabolites, and JWH-203, AM-694, RCS-8, XLR-11 and HU-210 parent com-pounds in urine. Non-chromatographically resolved alkyl hydroxy metabolite isomers were consideredsemi-quantitative. Glucuronidase hydrolyzed urine was extracted with 1 ml Biotage SLE+ columns.Specimens were reconstituted in 150 L mobile phase consisting of 50% A (0.01% formic acid in water)and 50% B (0.01% formic acid in 50:50 methanol:acetonitrile). 4 and 25 L injections were performed toacquire data in positive and negative ionization modes, respectively. The LC–MS/MS instrument consistedof a Shimadzu UFLCxr system and an ABSciex 5500 Qtrap massspectrometer with an electrospray source.Gradient chromatographic separation was achieved utilizing a Restek Ultra Biphenyl column with a0.5 ml/min flow rate and an overall run time of 19.5 and 11.4 min for positive and negative mode methods,respectively. Quantification was by multiple reaction monitoring with CP 47,497 compounds and HU-210ionized via negative polarity; all other analytes were acquired in positive mode. Lower and upper limitsof linearity were 0.1–1.0 and 50–100 g/l (r2> 0.994).
医疗/卫生 2017-11-25
人体尿液中烷基羟基代谢物检测方案(制备液相色谱)
Clandestine laboratories constantly produce new synthetic cannabinoids to circumvent legislative efforts,complicating toxicological analysis. No extensive synthetic cannabinoid quantitative urinary methodsare reported in the literature. We developed and validated a liquid chromatography–tandem mass spec-trometric (LC–MS/MS) method for simultaneously quantifying JWH-018, JWH-019, JWH-073, JWH-081,JWH-122, JWH 200, JWH-210, JWH-250, JWH-398, RCS-4, AM-2201, MAM-2201, UR-144, CP 47,497-C7,CP 47,497-C8 and their metabolites, and JWH-203, AM-694, RCS-8, XLR-11 and HU-210 parent com-pounds in urine. Non-chromatographically resolved alkyl hydroxy metabolite isomers were consideredsemi-quantitative. Glucuronidase hydrolyzed urine was extracted with 1 ml Biotage SLE+ columns.Specimens were reconstituted in 150 L mobile phase consisting of 50% A (0.01% formic acid in water)and 50% B (0.01% formic acid in 50:50 methanol:acetonitrile). 4 and 25 L injections were performed toacquire data in positive and negative ionization modes, respectively. The LC–MS/MS instrument consistedof a Shimadzu UFLCxr system and an ABSciex 5500 Qtrap massspectrometer with an electrospray source.Gradient chromatographic separation was achieved utilizing a Restek Ultra Biphenyl column with a0.5 ml/min flow rate and an overall run time of 19.5 and 11.4 min for positive and negative mode methods,respectively. Quantification was by multiple reaction monitoring with CP 47,497 compounds and HU-210ionized via negative polarity; all other analytes were acquired in positive mode. Lower and upper limitsof linearity were 0.1–1.0 and 50–100 g/l (r2> 0.994).
医疗/卫生 2017-11-25
化学药中主要物质含量分析检测方案
Previously it has been shown that glycerol can be regioselectively glucosylated by sucrose phosphorylase from Leuconostoc mesenteroides to form 2-O--d-glucopyranosyl glycerol.A series of compounds related to glycerol were investigated by us to determine the scope of the -glucosylation reaction of sucrose phosphorylase. Both sucrose and glucose 1-phosphate (G1P) were applied as glucosyl donor. Mono-alcohols were not accepted as substrates but several 1,2-diols were readily glucosylated, proving that the vicinal diol unit is crucial for activity. The smallest substrate that was accepted for glucosylation appeared to be ethylene glycol,which was converted to the monoglucoside for 69%. Using high acceptor and donor concentrations (up to 2.5 M), sucrose or G1P hydrolysis (with H2O being the ‘acceptor’) can be minimised. In the study cited above, a preference for glucosylation of glycerol on the 2-position has been observed. For 1,2-propanediol however, the regiochemistry appeared to be dependent on the configuration of the substrate. The (R)-enantiomer was preferentialy glucosylated on its 1-position (ratio 2.5:1), whereas the 2-glucoside is the major product for (S)-1,2-propanediol (1:4.1). d.e.ps of 71–83% were observed with a preference for the (S)-enantiomer of the glucosides of 1,2-propanediol and 1,2-butanediol and the (R)-enantiomer of the glucoside of 3-methoxy-1,2-propanediol. This is the first example of stereoselective glucosylation of a non-natural substrate by sucrose phosphorylase. 3-Amino-1,2-propanediol, 3-chloro-1,2-propanediol, 1-thioglycerol and glyceraldehyde were not accepted as substrates.
制药/生物制药 2015-02-12

库拉索芦荟叶皮中磷酸二酯酶检测方案(制备液相色谱)
The ethanolic extract of Aloe barbadensis Miller leaf skin showed inhibitory activity against phosphodiesterase-4D (PDE4D), which is a therapeutic target of inflammatory disease. Subsequent bioassay-guided fractionation led to the isolation of two new anthrones, 6′-Oacetyl- aloin B (9) and 6′-O-acetyl-aloin A (11), one new chromone, aloeresin K (8), together with thirteen known compounds. Their chemical structureswere elucidated by spectroscopic methods including UV, IR, 1D and 2DNMR, and HRMS. All of the isolateswere screened for their inhibitory activity against PDE4D using tritium-labeled adenosine 3′,5′-cyclic monophosphate (3H cAMP) as substrate. Compounds 13 and 14were identified as PDE4D inhibitors,with their IC50 values of 9.25 and 4.42μM, respectively. These achievements can provide evidences for the use of A. barbadensis leaf skin as functional feed additives for anti-inflammatory purpose.
制药/生物制药 2017-11-25
化学药中主要物质含量分析检测方案
Previously it has been shown that glycerol can be regioselectively glucosylated by sucrose phosphorylase from Leuconostoc mesenteroides to form 2-O--d-glucopyranosyl glycerol.A series of compounds related to glycerol were investigated by us to determine the scope of the -glucosylation reaction of sucrose phosphorylase. Both sucrose and glucose 1-phosphate (G1P) were applied as glucosyl donor. Mono-alcohols were not accepted as substrates but several 1,2-diols were readily glucosylated, proving that the vicinal diol unit is crucial for activity. The smallest substrate that was accepted for glucosylation appeared to be ethylene glycol,which was converted to the monoglucoside for 69%. Using high acceptor and donor concentrations (up to 2.5 M), sucrose or G1P hydrolysis (with H2O being the ‘acceptor’) can be minimised. In the study cited above, a preference for glucosylation of glycerol on the 2-position has been observed. For 1,2-propanediol however, the regiochemistry appeared to be dependent on the configuration of the substrate. The (R)-enantiomer was preferentialy glucosylated on its 1-position (ratio 2.5:1), whereas the 2-glucoside is the major product for (S)-1,2-propanediol (1:4.1). d.e.ps of 71–83% were observed with a preference for the (S)-enantiomer of the glucosides of 1,2-propanediol and 1,2-butanediol and the (R)-enantiomer of the glucoside of 3-methoxy-1,2-propanediol. This is the first example of stereoselective glucosylation of a non-natural substrate by sucrose phosphorylase. 3-Amino-1,2-propanediol, 3-chloro-1,2-propanediol, 1-thioglycerol and glyceraldehyde were not accepted as substrates.
制药/生物制药 2015-02-12
化学药中主要物质含量分析检测方案
A biomimetic approach has been investigated and developed for the total synthesis of azonazine, an unusual marine natural cyclopeptide containing a rigid transannular 10-membered ring. A hypervalent iodine-mediated direct oxidative cyclization was successfully developed and applied to construct the highly strained core, which was the key step in the first total synthesis of ent-()-azonazine. Based on the physical evidences of synthesized diastereomer and enantiomer of azonazine, both the relative and absolute configurations of the natural product were revised. Two fluorinated azonazine derivatives were also synthesized in short convenient steps utilizing the same intermediate in this work. The established total synthesis opens a potential opportunity to study the structureeactivity relationship of natural azonazine.
制药/生物制药 2015-02-12
化学药中主要物质含量分析检测方案
A group of novel taxoids, with modifications at C-7, C-10, C-30 and C-14 positions of paclitaxel, was synthesized in order to improve their biological profile by decreasing their affinity with P-glycoprotein (Pgp) and increasing cellular permeability. Most of the new taxoids demonstrated the similar potent cytotoxic activities in MCF-7 human tumor cell line as paclitaxel in vitro. In the permeability assay with monolayers of Caco-2 cells, most of the compounds demonstrated an increased trans-cellular transport in Ato- B direction in comparison with paclitaxel. Among them the compounds T-13, T-15 and T-26 showed the highest permeability, and with efflux ratios better than that of ortataxel. The interaction of the compounds T-13 and T-26 with P-gp was evaluated using Madin-Darby canine kidney (MDCK)-multidrug resistance-1(MDR1) and MDCK-wild-type (WT). The results indicated that T-13 and T-26 were poor substrates for P-gp and possessed inhibiting effects of P-gp mediated efflux. It was thus clear that simultaneous modifications at the C-7, C-10 and C-30 positions of paclitaxel significantly impaired its interactions with P-gp and interfered with P-gp mediated efflux.
制药/生物制药 2015-02-12

使用Biotage Isolera 中低压制备液相色谱进行抗蛋白酶降解多肽纯化
基于蛋白水解酶的催化机制以及蛋白酶抑制剂的结构特点，作者提出了一个长效肽的设计思路。选择了LRHR拮抗剂为模拟化合物，为别再N端和5位，N端和6位进行了氨基酸的修饰和替换。耐士科技作为Biotage中国区总代理，以最优质的服务提供Biotage全系产品。Biotage Isolera 系列是世界上最智能的快速纯化系统，它拥有自己独创的智能参数设置，共有3个系统，多种配置可选。可以让化学家们轻松地完成对从mg级到150g以上样品的更好的分离。创新的TLC-to-gradient专利技术可以根据薄层层析色谱的数据自动产生适合样品的溶剂洗脱梯度，并建议适合该样品量的色谱柱。通过双波长检测收集馏分，最多可以在单一梯度下同时使用四种溶剂进行洗脱，以达到最大限度提高纯度和收率的目的。通过梯度优化功能，可以实现加大上样量同时减少溶剂使用量。
生物产业 2015-01-13
使用Biotage 快速纯化制备液相色谱进行哈茨木霉菌发酵液中Peptaib抗菌肽的分离纯化
从哈恣木酶发酵液分离鉴定出Alamethicin F50等各种天然产物，利用Biotage液相色谱，对各类产物进行了纯化制备。耐士科技作为Biotage中国区总代理，以最优质的服务提供Biotage全系产品。Biotage Isolera 系列是世界上最智能的快速纯化系统，它拥有自己独创的智能参数设置，共有3个系统，多种配置可选。可以让化学家们轻松地完成对从mg级到150g以上样品的更好的分离。创新的TLC-to-gradient专利技术可以根据薄层层析色谱的数据自动产生适合样品的溶剂洗脱梯度，并建议适合该样品量的色谱柱。
生物产业 2015-01-13

人体尿液中大麻素及其代谢产物检测方案(制备液相色谱)
Clandestine laboratories constantly produce new synthetic cannabinoids to circumvent legislative efforts,complicating toxicological analysis. No extensive synthetic cannabinoid quantitative urinary methodsare reported in the literature. We developed and validated a liquid chromatography–tandem mass spec-trometric (LC–MS/MS) method for simultaneously quantifying JWH-018, JWH-019, JWH-073, JWH-081,JWH-122, JWH 200, JWH-210, JWH-250, JWH-398, RCS-4, AM-2201, MAM-2201, UR-144, CP 47,497-C7,CP 47,497-C8 and their metabolites, and JWH-203, AM-694, RCS-8, XLR-11 and HU-210 parent com-pounds in urine. Non-chromatographically resolved alkyl hydroxy metabolite isomers were consideredsemi-quantitative. Glucuronidase hydrolyzed urine was extracted with 1 ml Biotage SLE+ columns.Specimens were reconstituted in 150 L mobile phase consisting of 50% A (0.01% formic acid in water)and 50% B (0.01% formic acid in 50:50 methanol:acetonitrile). 4 and 25 L injections were performed toacquire data in positive and negative ionization modes, respectively. The LC–MS/MS instrument consistedof a Shimadzu UFLCxr system and an ABSciex 5500 Qtrap massspectrometer with an electrospray source.Gradient chromatographic separation was achieved utilizing a Restek Ultra Biphenyl column with a0.5 ml/min flow rate and an overall run time of 19.5 and 11.4 min for positive and negative mode methods,respectively. Quantification was by multiple reaction monitoring with CP 47,497 compounds and HU-210ionized via negative polarity; all other analytes were acquired in positive mode. Lower and upper limitsof linearity were 0.1–1.0 and 50–100 g/l (r2> 0.994).
医疗/卫生 2017-11-25
人体尿液中烷基羟基代谢物检测方案(制备液相色谱)
Clandestine laboratories constantly produce new synthetic cannabinoids to circumvent legislative efforts,complicating toxicological analysis. No extensive synthetic cannabinoid quantitative urinary methodsare reported in the literature. We developed and validated a liquid chromatography–tandem mass spec-trometric (LC–MS/MS) method for simultaneously quantifying JWH-018, JWH-019, JWH-073, JWH-081,JWH-122, JWH 200, JWH-210, JWH-250, JWH-398, RCS-4, AM-2201, MAM-2201, UR-144, CP 47,497-C7,CP 47,497-C8 and their metabolites, and JWH-203, AM-694, RCS-8, XLR-11 and HU-210 parent com-pounds in urine. Non-chromatographically resolved alkyl hydroxy metabolite isomers were consideredsemi-quantitative. Glucuronidase hydrolyzed urine was extracted with 1 ml Biotage SLE+ columns.Specimens were reconstituted in 150 L mobile phase consisting of 50% A (0.01% formic acid in water)and 50% B (0.01% formic acid in 50:50 methanol:acetonitrile). 4 and 25 L injections were performed toacquire data in positive and negative ionization modes, respectively. The LC–MS/MS instrument consistedof a Shimadzu UFLCxr system and an ABSciex 5500 Qtrap massspectrometer with an electrospray source.Gradient chromatographic separation was achieved utilizing a Restek Ultra Biphenyl column with a0.5 ml/min flow rate and an overall run time of 19.5 and 11.4 min for positive and negative mode methods,respectively. Quantification was by multiple reaction monitoring with CP 47,497 compounds and HU-210ionized via negative polarity; all other analytes were acquired in positive mode. Lower and upper limitsof linearity were 0.1–1.0 and 50–100 g/l (r2> 0.994).
医疗/卫生 2017-11-25

通过Biotage Isolera 快速纯化制备液相的基础上进行全氟聚合物电解膜单体的提纯
利用PERFECT 法开发出一种新的氟化聚合物防污涂层材料CF3O( CF2CF2O) xCF2 － CONHCH2CH2CH2Si( OCH3 ) 3，该法采用了直接与氟元素氟化反应，氟化反应是该方法的一个关键步骤。通过非氟化聚乙二醇( PEG) 和全氟酰氟化物反应，得到部分氟化酯，对该氟化酯进行直接氟化，然后通过甲醇解将全氟酰氟引入到相应的化合物上，最终得到用于表面处理的涂层材料和起始物全氟酰氟化物的甲基酯。合成出一种新的全氟磺酸双功能单体CF2 = CFOCF2CF2CF2OCF( CF2 SO2F) 2，该单体可应用于合成燃料电池( PEMS) 的聚合物电解质膜。耐士科技作为Biotage中国区总代理，以优质的服务提供Biotage全系产品以及相关技术服务。
石油/化工 2015-01-13

典型用户

用户单位	采购时间
南京大学	2012-10-16
先声药业	2012-09-10
药明康德	2010-12-14