METHANOL - 135 Anuncios

Viernes 05 julio 2019

When the polarity of the stationary phase is greater than the polarity of the mobile phase, it can be called normal phase partition chromatography or simply normal phase chromatography. If the polarity of the stationary phase is less than the polarity of the mobile phase, it can be...

Jueves 04 julio 2019

C8 HPLC columns are used to isolate many organic compounds, which are one of the reversed phase silica gel columns. The maintenance of C8 HPLC columns requires organic solvents. Chromatographic grade methanol is recommended and different brands of chromatographic columns should be...

Martes 02 julio 2019

The key to regenerating contaminated HPLC columns is to know the nature of the contaminants and to find the right solvent to remove. If contamination is caused by the accumulation of strongly retained materials during repeated injections, simple steps to remove these contaminants...

Viernes 28 junio 2019

Stationary Phase & Mobile Phase The stationary phase is used to separate the substances, which is packed into HPLC Column directly; Mobile phase is the carrier, which carries the substances into the stationary phase and goes through the stationary phase. It is gas in the vapor phase...

Jueves 13 junio 2019

NH2 HPLC columns can be used in the positive phase or in the negative phase, but it should be noted that the positive phase solvent and the negative phase solvent are usually not mutually soluble. New NH2 HPLC columns are preserved in the positive phase environment under normal circumstances...

Jueves 19 julio 2018

Precio : 1 million to 100 mil

Oil and gas refers to a combustible, explosive and poisonous gas mixture that is comprised of various volatile hydrocarbon components letting out through evaporative emission in the process of handling and storage of diversified oil products. If discharged directly, oil gas will not...

Jueves 19 julio 2018

Precio : 1 million to 100 mil

There are nearly 400 calcium carbide manufacturing enterprises in China at present whose total annual productivity exceeds 15 million tons. More than 15 billion m3 tail gas of calcium carbide furnace is produced in China every year. It mainly contains CO (75%~90%) which is total If...

Jueves 19 julio 2018

Precio : 1 million to 100 mil

Using the independently-developed and high-efficiency PSA-H2 adsorbent, PIONEER's rapid, low consumption and high-efficiency PSA-H2 process has the following features, low investment and operating cost, high purity and recovery of gas product, flexibility of feed gas and easy load regulation...

Martes 06 febrero 2018

Cantidad : 10 sets pe - Precio : factory price

Advantages of activated carbon adsorption device: - The adsorption efficiency is up to 90%, it has the large capacity and wide application. - Activated carbon has the characteristics of low price, wide range of sources, and so on. - The operation is simple, safe and reliable. -...

Domingo 04 febrero 2018

Cantidad : 1 kg - Precio : $30-125

Description Chinese ginseng has a history of herbal use going back over 5,000 years. It is one of the most highly regarded of herbal medicines in the Orient, where it has gained an almost magical reputation for being able to promote health, general body vigour and also to prolong life...

Domingo 21 enero 2018

Cantidad : 1 TONS - Precio : NEGOTIATION

Tetrabromobisphenol A bis (2, 3-dibromopropyl ether) (BDDP) CAS No.: 21850-44-2 Formula: C21H20Br8O2 Molecular Weight: 943.62 Chracteristics: It is white powder, Soluble in dichloromethane, toluene, acetone and insoluble in water and methanol Usage: It is mainly used for plastics...

Martes 09 enero 2018

Cantidad : 1 kg - Precio : $30-125

Chinese ginseng has a history of herbal use going back over 5,000 years. It is one of the most highly regarded of herbal medicines in the Orient, where it has gained an almost magical reputation for being able to promote health, general body vigour and also to prolong life. The genus...

Martes 19 diciembre 2017

- L–1,4-BDO - - Introduction - CAS: 110-63-4Molecular formula: C4H10O2Molecular weight: 90.12 - Product Properties - The flammable liquid of colorless and oil-state in nature, it can be dissolved and mixed in water, methanol, ethanol, acetone and slightly soluble in ethyl ether...

Martes 11 abril 2017

Production Name: Huperzine A Huperzia serrata extract Original plant: Huperzinaserrata(Thumb.)Trev Specification: 1%,5%,98% Test Method: HPLC Molecular Formula: C15H18N2O Molecular Weight: 242.32 CAS No: 102518-79-6 Melting Point: 214~215°C Soubility: Soluble in Chloroform,Methanol...

Sábado 01 abril 2017

Resveratrol (3,5,4′-trihydroxy-trans-stilbene) is a stilbenoid, a type of natural phenol, and a phytoalexin produced by several plants in response to injury or when the plant is under attack by pathogens such as bacteria or fungi. Sources of resveratrol in food include the skin of grapes...

Sábado 01 abril 2017

Resveratrol (3,5,4′-trihydroxy-trans-stilbene) is a stilbenoid, a type of natural phenol, and a phytoalexin produced by several plants in response to injury or when the plant is under attack by pathogens such as bacteria or fungi. Sources of resveratrol in food include the skin of grapes...

Sábado 25 marzo 2017

Cantidad : Best - Precio : 210-230USD/Kg

High quality giant knotweed extract/giant knotweed extract bulk resveratrol Resveratrol (3,5,4′-trihydroxy-trans-stilbene) is a stilbenoid, a type of natural phenol, and a phytoalexin produced by several plants in response to injury or when the plant is under attack by pathogens...

Miércoles 26 octubre 2016

1-(4-Bromobenzyl)-2-butyl-4-chloro-1H-im idazole-5-methanol 151012-31-6 C15H18BrClN2O 357.68 white crystalline powder ≥98% intermediate of Losartan 25KG/DRUM Ubicación : NO.108 ShenJiaLi Road,Shushan Street, 311215 hangzhou, Persona a contactar : eason zhu, 86 571 82609104

Viernes 02 septiembre 2016

Precio : 10,00 €

Name: alpha-cyclodextrin Other name : α-cyclodextrin ; cyclomaltohexaoseAbbreviation : ACDCAS: 10016-20-3Molecular formula : C36H60O30Molecular weight: 972.84Solubility(in 100cm3 solvent, at 25℃) : water: >10g Methanol: <1.0g DMSO: >10gQaulity ： Pharma grade / food grade...

Miércoles 04 mayo 2016

Micro Flow Meter Flow range and Connection Model Flow range Connection CX-M2 0.5~150 ml/min G1/8 female thread CX-M3 1-300 ml/min G1/8 female thread CX-M5 5-1000 ml/min G1/8 female thread CX-M6 0.5-100 l/H G1/4 female thread CX-M9 5-550 l/H G1/4...

Miércoles 04 mayo 2016

- Micro Flow Meter - - Flow range and Connection - Model Flow range Connection CX-M2 0.5~150 ml/min G1/8 female thread CX-M3 1-300 ml/min G1/8 female thread CX-M5 5-1000 ml/min G1/8 female thread CX-M6 0.5-100 l/H G1/4 female thread CX-M9 5-550...

Miércoles 04 mayo 2016

- Micro Flow Meter - - Flow range and Connection - Model Flow range Connection CX-M2 0.5~150 ml/min G1/8 female thread CX-M3 1-300 ml/min G1/8 female thread CX-M5 5-1000 ml/min G1/8 female thread CX-M6 0.5-100 l/H G1/4 female thread CX-M9 5-550...

Miércoles 04 mayo 2016

- Micro Flow Meter - - Flow range and Connection - Model Flow range Connection CX-M2 0.5~150 ml/min G1/8 female thread CX-M3 1-300 ml/min G1/8 female thread CX-M5 5-1000 ml/min G1/8 female thread CX-M6 0.5-100 l/H G1/4 female thread CX-M9 5-550...

Miércoles 04 mayo 2016

Ubicación : Rm613, Jiahe Sunny Plaza, No.76 JiuTing Road, Songjiang District, Shanghai, P.R. China.Zip:201615, 201615 shanghai, Persona a contactar : Michael Luo, +15 0 00 08 75 45

Martes 22 marzo 2016

Cantidad : 1-1000

Dresser Wayne Fuel Dispenser Filter WEBSITE: www.haolxfiltration.com TEL: 86-318-7061221 E-MAIL: candy@filter-cn.com Category: Service station filter Material: stainless steel 304 316,wood pulp filter paper,aluminium wire... Properties: Application: for use on above ground storage tanks...

Martes 22 marzo 2016

WEBSITE: www.haolxfiltration.com TEL: 86-318-7061221 E-MAIL: candy@filter-cn.com Cim-Tek 400 Series Fuel Filters For Gilbarco Dispenser: Application: Application of 300/300MG And 400/400MG : Particulate contaminant removal; Compatible with gasoline, diesel, ethanol, and methanol...

Martes 22 marzo 2016

Cantidad : 1-1000

WEBSITE: www.haolxfiltration.com TEL: 86-318-7061221 E-MAIL: candy@filter-cn.com TOKHEIM Fuel Filter: Application: Particulate filtration For use with diesel, gasilne , and ethanol or methanol blends up to 10% Use with low-volume commercial power pumps For use on above ground...

Martes 22 marzo 2016

Cantidad : 1-10000

- WEBSITE: www.haolxfiltration.com TEL: 86-318-7061221 E-MAIL: candy@filter-cn.com - Service Station Petrol Pump Filter Standard: 1 1/2-16UNF ; 1''-12UNF Material: imported filter paper, stainless steel Function: suction Filter Structure: cartridge Filter Benefits: Assure...

Jueves 14 enero 2016

Cantidad : MOQ:1box - Precio : Negotiable

Enzyme-linked immune test steps Step 1: Number: determine the number of well (samples and standards) to be used and store unused wells in 4 ℃. Every sample and standard must be parallel well (2well), and record their location Step 2: Addtion reaction: Add 50μl standard or sample...

Miércoles 22 abril 2015

- - Ubicación : NO.7 Groups of Caojiapeng Neighborhood Committee | Economic and Technological Development Zone of Shimen | Changde | Hunan | China, 410000 changde, Persona a contactar : zoe zangwill, 86 731 88702791