ACIDIC - 217 Anuncios

Miércoles 11 diciembre 2019

The HPLC reversed-phase column is made of high-purity and high-strength silica gel by using advanced bonding technology. It has a high surface bonding rate and good peak shape for alkaline and acidic compounds. With a high column capacity and long service life, it is the one for the...

Miércoles 09 octubre 2019

Flash column chromatography is an easy and fast method to separate the complex mixtures. It can not only make the separation effect better but also shorten the time. How to put the sample into the flash column is of high importance in the preparation process of flash column chromatography...

Sábado 28 septiembre 2019

Depending on the packing of the HPLC column. The following column types are available on the market: 1. Silica gel HPLC column: Silica gel is the earliest chromatographic column packing used in liquid chromatography. It has a wide range of applications. However, it can only be used...

Jueves 26 septiembre 2019

- Reversed-Phase Principle - The reversed-phase filler is a kindly of nonpolar filler such as C4, C8, C18 aliphatic chain which is bonded on the silica gel. Nonpolar or hydrophobic compounds are strongly reserved, while polar samples are weakly reserved and go through the flash reversed-phase...

Miércoles 25 septiembre 2019

Textile enzyme is a highly effective neutral cellulase preparation produced by the fermentation of trichoderma. Biopolishing enzymes textile industry is suitable for washing of towel fabric, can remove the surface hairiness, pellets, the treated towel fabric is softer, fluffy and drape well...

Miércoles 25 septiembre 2019

Cantidad : 1-200ton - Precio : 10usd

Instructions of Epoxy Zinc-Rich Primer It is two components epoxy zinc-rich primer heavy corrosion by a zinc primer, epoxy resin and other components. On steel surface treated to form a hard, wear-resistant, durable film, and provide long-lasting cathode protection. Property of Zinc...

Lunes 23 septiembre 2019

The reason for the QuEChERS matrix effect in the liquid state is generally considered to be due to the non-volatile components in the matrix and the substance to be tested, which competes in the ionization process. The matrix effect in gas phase temperament is generally attributed...

Jueves 19 septiembre 2019

The extraction thimble is mainly applied in the lab experiment involved with Soxhlet Extraction to ensure complete extraction. There are three types of extraction thimbles available – cellulose extraction thimble, glass fiber extraction thimble, and quartz fiber extraction thimble...

Martes 17 septiembre 2019

Adsorption chromatography uses the difference in adsorption capacity of substances in stationary phase adsorption to achieve separation of the mixture. The chromatographic process of adsorption chromatography is the process in which the mobile phase molecules compete with the material...

Viernes 16 agosto 2019

NH2 HPLC columns refer to the chromatographic columns that use silica gel as matrix carrier to bond amino groups. They are usually used for the analysis of carbohydrate compounds, and the mobile phase is usually methanol, acetonitrile and buffers salt solution. - The cleaning method...

Miércoles 14 agosto 2019

Physical properties of the chromatographic column could affect the performance of C18 HPLC columns. - Performance factors of C18 HPLC columns: - Silica gel purity Class A silica gel has high residual silica hydroxyl with a negative charge and high metal content on the acidic surface...

Martes 06 agosto 2019

Cantidad : 100000TM - Precio : 50USD

Uses of Diethanolamine Diethanolamine similar to triethanolamine (T775580) is used as a surfactant. It also has the potential to be a corrosion inhibitor by means of chemisorption. Definition of Diethanolamine ChEBI: A member of the class of ethanolamines that is ethanolamine having...

Lunes 15 julio 2019

Cantidad : 1 - Precio : $36.78

What Are Some Tips For The Maintenance Of Human Hair Extensions? Have you taken remy hair extensions? Do you know how to take care of hair extensions? Here are some tips about how to maintain the hair extensions. It can be used for more than 3 months if you can take good care of it...

Martes 02 julio 2019

The average sample addition recovery rate of QuEChERS method is higher than 85%, with fewer impurities interfering with the detection of the target substance, a small amount of solvent, simple and fast operation, which will be the preferred pretreatment method for routine detection...

Martes 02 julio 2019

Fitting most commercially available Soxhlet extractors, we offer a variety of selection of high-quality extraction. To achieve an efficient and reliable analysis in the lab, the extraction thimbles are used to extract certain components out of the sample of solid material. The thimbles...

Jueves 20 junio 2019

Extraction is often susceptible to matrix interference. One analytical method is fine in this matrix but can become problematic in another matrix. If we encounter such a situation, how can we improve the QuEChERS method to overcome it? For pesticide residues, most of the food samples...

Martes 18 junio 2019

Hawach glass solvent filters is an important part of laboratory filtration, and many customers often encounter cleaning problems when using glass solvent filters. The conventional cleaning methods mainly include the following: 1. Soaking with an acidic solvent: The advantage of this...

Viernes 14 junio 2019

Hawach introduced the properties and application range of HPLC column stationary phase in the silica gel matrix. Silica gel matrix: Silica gel, weakly acidic, has a strong memory, used to separate non-polar, weakly acidic compounds, oils, etc.; C18, a silica-based uncapped reversed-phase...

Miércoles 05 junio 2019

Extraction thimble sizes should be decided as per users' specific applications. Every single size represents the particular practice of displaying the internal diameter and general length of the thimble in millimeters. Thus the extra allowance for the thickness of the thimble wall...

Martes 29 enero 2019

Precio : US$0.9/bottle

Ketone Strips is the perfect solution for anyone needing to test ketone levels including low carb dieters, diabetics, or those who do intermittent fasting. Within seconds quickly and easily test if you are IN or OUT of ketosis. Our premium medical grade ketosis test strips are engineered...

Miércoles 09 mayo 2018

Huaxiao Capacity about 2205 hot rolled stainless steel plate, 2205 PMP Thickness: 1.2mm - 200mm Width: 600mm - 3200mm, the narrowed products pls check in strip or flat bar products Length: 1000mm-12000mm Finish: NO.1, 1D, 2D, #1, hot rolled finished, black, Anneal and pickling, mill...

Domingo 08 abril 2018

Cantidad : 1*20' Foot - Precio : Negotiable

ACEITE DE OLIVA VIRGEN EXTRA El aceite de oliva virgen extra no se somete a ningún proceso de tratamiento químico. Simplemente se obtiene del prensado de las mejores aceitunas frescas de cosecha. Después del proceso de prensado mecánico, las propiedades del aceite de oliva no se modifican...

Sábado 09 diciembre 2017

Z4 series DC motors, the prime mover of machinery, are widely used in mill auxiliary of metallurgical industry, metal-cutting machine tool, paper making, printing, textile, printing and dyeing, cement-making as well as plastic extruding machine, etc. Outline and mounting dimensions...

Miércoles 21 diciembre 2016

Cantidad : 100 sets - Precio : 5 000,00 €

DVTP Double Stages High Vacuum Transformer Oil Filtration System has a high pumping rate of two-stage vacuum system, a unique degassing, dehydrating function, using the most advanced three-dimensional double-flash technology, fast and efficient removal of oil in liquid water, while...

Sábado 17 diciembre 2016

Cantidad : 1 tone - Precio : $700~800

Description: This product is a quaternary ammonium cationic polymer. Application Field: If you use our water decoloring agent,Must can decrease the dosage of the PAC,and decrease the sludge quantity. 1. It is mainly used for waste water treatment for textile, printing, dyeing...

Viernes 02 septiembre 2016

Product Name: Aluminum potassium sulfate Anhydrous Formula: AlK(SO4)2. Description: White crystal, soluble in water, acidic property appeared in aqueous solution. Specifications: Item FCCIV Content, 96.5Min. Arsenic,% 0.0003Max. Heavy Metals,% 0.001Max. Fluoride,% 0...

Sábado 27 agosto 2016

Precio : 10,00 €

If you are going to buy customized bulk vitamin c made in China or check the price and quotation with one of the leading vitamin c powder,Website: http://www.firstcollagens.com, vitamin c ampoules, vitamin c ascorbic acid, bulk ascorbic acid manufacturers and suppliers in China or a such factory...

Martes 24 mayo 2016

Cantidad : 3000/MONTH - Precio : USD155/MT FOB TIANJI

Le sulfate d'aluminium CAS No.10043-01-3 Le sulfate d'aluminium est un solide ou d'une poudre cristalline inodore, blanche ou blanc cassé. Le composé est préparé en ajoutant de l'hydroxyde d'aluminium à l'acide sulfurique. Il est hygroscopique, ce qui signifie qu'il a la capacité...

Jueves 19 noviembre 2015

Cantidad : 20 - Precio : USD600-1200

1.White Aluminum Oxide is fused from high quality bayer aluminum in high temperature.Its hardness is higher but toughness lower compared with Brown Aluminum Oxide.It is chsaracterized by high purity, excellent self-sharpening, efficient grinding efficiency, and low frictional heat...

Viernes 24 julio 2015

- China Manufacturer stainless steel submersible sewage pump with vortex impeller Product introduction: >>>Product Introduction WQP series stainless steel submersible sewage water pump is especially designed for foreign markets, the whole pump is made by stainless steel 304...