POLAR - 368 Anuncios

Jueves 08 agosto 2019

Most common SPE cartridges are injection syringes made of polyethylene, in which there are two plugs made of polypropylene or fiberglass, with a certain amount of chromatographic adsorbent (filler) between the two plugs. SPE cartridges without sieve plate 1. Avoid “non-specific adsorption” 2...

Sábado 03 agosto 2019

SPE cartridge can be divided into three classes on the markets: silica-based cartridges, polymer-based cartridges, and adsorption-based cartridges. And here we talk about the three types of silica-based cartridges. The first type is the C18 cartridges. This kind of cartridges bond...

Jueves 01 agosto 2019

As a core technology, JIUWU has become the largest ceramic membrane element producer and a world leader in cross-flow filtration. Electrodeionization (EDI) is a kind of pure water manufacturing technology which combines ion exchange technology , ion-exchange membrane technology and...

Jueves 01 agosto 2019

Hawach bottle-top dispensers help to simplify the routine liquid transfer operation and are widely used in all kinds of liquid reagents – buffer solution, medium, vitamin solution, acid, alkali, salt solution or a variety of polar solution. Bottle-top dispensers can meet the needs...

Miércoles 31 julio 2019

- The Selection Principle of Silica Gel Column - Commonly, the maximum sample loading volume of a silica gel column is about 1/20 of the volume of the column's silica gel. However, as a practical matter, specific sample loading volume should be decided by each constituent's degree...

Miércoles 31 julio 2019

Solid phase extraction (SPE), developed in the 1970s, can replace the traditional liquid-liquid extraction in many fields and has been applied more and more widely in the laboratory. The common solvent of SPE Hexane, isooctane, tetrahalide carbon, trihalomethane, dihalomethane, tetrahydrofuran...

Viernes 19 julio 2019

Bonded-phase chromatography is a liquid-liquid chromatography method in which a stationary phase is covalently bound to a carrier particle, which overcomes the mechanical shock in the distribution chromatography, the constant loss of the stationary phase and the gradual change of...

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...

Jueves 04 julio 2019

The silicon hydroxyl group with strongly polar on the surface of glass sample vials will adsorb the samples. Based on such reasons, people produce hydrophobic glass surface through silylating the sample vials in order to eliminate the adsorption of the sample vials, which is widely...

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

In this article, we want to clarify the syringe filter. Each of the different syringe filters is applied to the specific product Which the various syringe filter is worth seeing more and what are the right steps and methods to have a try. Classification by membrane The filtration...

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...

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...

Jueves 13 junio 2019

Package 1 QuEChERS extracting pesticide residues from plants Extraction box: 50 ml centrifuge tube + AOAC/EN salt pack 2 kinds of buffer salts: General buffer salt for phase-separation and pH-adjustment; Anhydrous magnesium sulfate completely separates water in the matrix from the...

Jueves 13 junio 2019

A. Cellulose Extraction Thimbles 1. 60% high purity grade polar fiber+40% refined cotton fiber no any binding agents which make it has stronger mechanical strength and stronger retention 2. 6 wall thickness optional to meet different retention and wet strength, dry strength increasing...

Viernes 07 junio 2019

QuEChERS method was originally applied to extract pesticides from fruits and vegetables. Whether under AOAC or EN stipulations, according to our products' Application and Test Report, we can see that the combination of salting out and d-SPE-purification in the initial liquid-liquid...

Miércoles 05 junio 2019

Hawach summarized the advantages of QuEChERS in eight aspects. 1. Recovery Rate QuEChERS technology has the advantage of high recovery rate. Experimental data show that the recovery rate of large quantities of polar and volatile pesticides by QuEChERS is above 85%. 2. Accuracy Laboratory...

Miércoles 29 mayo 2019

The CTE chloropac system is typically used for small to medium production capacities, while PPE system is typically used for larger production capacities of sodium hypochlorite. The Advantages for Applying Concentric Tubular Electrodes (CTE) Electrolyzer as Following: 1. Self-Cleaning...

Lunes 29 abril 2019

CN (cyanopropyl) solid phase extraction (SPE) cartridge, CN (cyanopropyl) is a weakly hydrophobic silica matrix filler, which can be used as a normal phase or reverse phase adsorbent. The non-polar or weakly polar acid, medium and basic compounds are extracted from the aqueous solution...

Jueves 30 agosto 2018

Shining Jins engaged in manufacturing and supply precision forged and turned metal components to numerous markets in Taiwan. Produce Capabilities : - General industrial applications cold forging and turning auto parts - Cold forged and turned Loudspeaker metal parts: Pole Piece ...

Jueves 30 agosto 2018

Shining jins Enterprise Co., Ltd. specializing in manufacturing & designing cold forge Pole piece (T-Yoke) for Loud-Speakers and alarms raw driver in Taiwan. Production capacity: T-Yoke/Pole Piece : - Diameter of Piece : 28mm up to 150mm - Diameter of Pole : 10mm up to 70mm...

Martes 24 julio 2018

- Enameled Wire Stripping Machine - - XC-0316 Enameled Wire Stripping Machine * Model: XC-0316 * Wire Size Range: 0.3 ~ 2.5mm * Stripping Length: 5 ~ 50mm * MOQ: 1 Unit * 1-year warranty. - XC-550 Enamelled Cable Stripping Machine * stripping method: 5 pcs blad * wire size: Φ0...

Jueves 12 abril 2018

E-light aplica tecnología de tres núcleos, IPL, RF y enfriamiento de la epidermis. Combina la ventaja de IPL y RF, por un lado, la piel absorbe selectivamente la energía del IPL y la piel también absorbe la energía de RF; por otro lado, la tecnología de refrigeración por contacto...

Miércoles 28 febrero 2018

Cantidad : 99 - Precio : 34.5$

Material: 100% lana polar / franela y mantenerte caliente Onesies uni para bebés, estilo de cremallera trasera - Easy On Toilet Lavar a máquina con agua fría, blanqueador sin cloro, secar al raso, no planchar, no lavar en seco Contenido del paquete: 1 x traje (sin zapatos) Diseño simple...

Jueves 08 febrero 2018

Cantidad : 2000 - Precio : 5,00 €

Plush Backpack Manufacturer in China Supplies Plush Polar Bear Backpack, 100% PP Cotton, Printing, Embroidery, Customized, Gift for Children. Name: Plush Polar Bear Backpack. Type: Cartoon Polar Bear. Gender: Male, Female. Material: Plush. Fill: 100% PP Cotton. Use: Gift for Children...

Miércoles 08 noviembre 2017

Cantidad : 1000 - Precio : 40,85 €

1.Product Overview : SK6805-2427 is a smart LED control circuit and light emitting circuit in one controlled LED source, which has the shape of a 5050 LED chip. Each lighting element is a pixel, and the intensities of the pixels are contained within the intelligent digital interface input...

Sábado 28 octubre 2017

Cantidad : 500pcs - Precio : $15.5

Features: ※Bearing system: ball bearing & sleeve bearing ※Impeller: PBT with fiber class filed ul-94v0 ※Motor type: dc brushless ※Connection: wire & terminal Red (+)/blk(-)/blu (pwm) ※Output signal: fg—yell rd—white ※Protection: polar & locked ※IP class: max ip68) ※Insulation class...

Viernes 27 octubre 2017

Precio : 10,00 €

Ubicación : 4th Floor (Full-Thickness), Hualian Building, Wah Fu Industrial Park, Two Heng Road, Ring Kau, Baiyun District, Guangzhou, Guangdong, 510000 Guangzhou, Persona a contactar : Huang Darley, 86 20 28212646

Jueves 19 octubre 2017

Cantidad : 1000 - Precio : 52,52 €

1. Product Overview : SK6812 is a smart LED control circuit and light emitting circuit in one controlled LED source, which has the shape of a 5050 LED chip. Each lighting element is a pixel, and the intensities of the pixels are contained within the intelligent digital interface input...