BUFFER - 639 Annonces

Jeudi 08 août 2019

Chromatography is a separation and analysis method and the separation is the core. Therefore, HPLC columns are the heart of the chromatographic system. The requirements for the column are high efficiency, good selectivity and fast analysis speed. Generally, the column length of about...

Mardi 06 août 2019

Ion-exchange solid phase extraction is widely used in biological samples and environmental monitoring. During the extraction process, the pH of the sample is adjusted so that the solute is easily ionized. The solute is exchanged from the resin by changing the pH or increasing the...

Lundi 05 août 2019

One of the main factors affecting the life of the liquid chromatographic column is the mobile phase. There are three aspects of the mobile phase factors. The pH value of the Mobile Phase The fillers of different substrates apply to different pH value range. Under normal temperature...

Samedi 03 août 2019

In the application of membrane separation technology, the microporous membrane is the most widely used membrane variety. It is simple and fast to use and is widely used in many fields such as scientific research, food testing, chemical industry, nanotechnology, energy, and environmental...

Jeudi 01 août 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...

Mardi 30 juillet 2019

The improper use of chromatographic columns will make the columns decrease or lose effectiveness. Generally speaking, the columns always have problems at the end of them. If we can install a short column with the same stationary phase as the analysis column in front of analysis column...

Jeudi 11 juillet 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Jeudi 11 juillet 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Mercredi 10 juillet 2019

According to the research from the United States Department of Agriculture, the QuEChERS meth od which extracts pesticide from foods is fast, convenient, cheap, effective and secure. When it compares to the traditional SPE method, QuEChERS not only uses less solvent but also adopts...

Lundi 08 juillet 2019

The laboratory vacuum filter unit is designed for laboratory users to filter solid-liquid separation of liquid samples. Stai nless Steel Vacuum Filtrations operation steps: 1. Place the glass filter bottle on the stainless steel vacuum filtrations and insert the silicone plug of...

Mardi 02 juillet 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...

Lundi 24 juin 2019

Prix : USD44,000 to USD17,0

Machine performance of 52m Concrete Pump Truck The concrete pump chassis of zoomlion ZLJ5430THBB 52x-6rz adopts noble German Benz chassis. Intelligent and safe distribution control: set up a global benchmark for intelligent control of long-arm pump truck. Based on the top K - CIFA...

Vendredi 21 juin 2019

We can always hear such a conversation between those researchers. “Hey, buddy, what is your purity degree of the end products today?” “Damn it. Such a low degree that I cannot even use for the next step. Any better methods for clarifying raw materials?” Then there comes Hawach syringe filter...

Jeudi 20 juin 2019

Basic Knowledge of Vacuum Filtration Based on the principle that under the same pressure (vacuum degree), the vaporization temperature of the water is lower than that of oil, scientists make practical equipment which is called vacuum filter. In fact, vacuum filtration is the most...

Vendredi 14 juin 2019

Quantité : 1000 - Prix : 1 000,00 €

Huatai Industrial (Hong Kong) Co., Ltd. est un fabricant professionnel de toutes sortes de joints en caoutchouc, cylindres, joints de cylindres, joints mécaniques, moules en caoutchouc, matériel et autres produits. Nos produits utilisent des composés de caoutchouc importés, tels...

Jeudi 13 juin 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...

Jeudi 13 juin 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...

Lundi 10 juin 2019

Features The operation panel words are simple and clear, the alarm is exact, PCB conveying buffer distance is adjustable. PLC control system ensures the stable operation without interference, and the software can offer the sound safety protection measures for machine with the reasonable...

Vendredi 07 juin 2019

Syringe filters are one of the types of filters. The structure design of the syringe filter is precise and the liquid is filtered smoothly. Internal space design is reasonable, so the residue rate is very low. In addition, the syringe filter has the following characteristics. Characteristics...

Jeudi 06 juin 2019

The glass fiber filter is chemically inert and contains no binder. It is made of 100% borosilicate glass fiber. It has a capillary structure, can absorb more water than the same cellulose filter paper, has the characteristics of fast flow rate, high-temperature resistance and strong...

Vendredi 29 mars 2019

Flygt mechanical seals are usually used in the Swedish ITT Flygt mixer and submersible sewage pumps. They are one of the essential Flygt pump parts for mechanical seal Flygt pump . The structure is divided into old structure, new structure(Griploc seal) and cartridge mechanical seal...

Mercredi 27 mars 2019

Features: Keyword: Commercial water slides manufacturer Material: fiberglass Capacity: 2 or 4 person/raft Slide type: raft slide Width: 2.5m-18.6m Length: 106m Tower height: 9m – 18.5m Floor space: 20㎡- 1500㎡ Capacity per hour: 40 or 400 riders/h Boomerang Large Water Slide For Sale...

Mercredi 27 mars 2019

Features: Keyword: Park slides manufacturer Material: fiberglass Capacity: 4 person/raft Slide type: Raft slide Width: 2.6m-8.2m Length: 147m Tower height: 18.5m, customized Model Number: HS118 Capacity per hour: 400 riders/h Production method: spray up Tantrum Alley Park Slides...

Samedi 12 janvier 2019

Rubber Pavers Dogbones 1.Durable: EMEI Rubber Floor are made from SBR tire rubber. High strengh polyurethane binders. 2.Anti-Fatigue Resilience: Fabricated from thousands of fine rubber granules, offer superior underfoot comfort. Their resilient properties cushion the strain from running...

Jeudi 06 décembre 2018

Quantité : 1 - Prix : 1 999,00 €

Application : Single wing drop impact tester is used to measure the dropping impact incidence when the package in using, transportation and decorating. Besides precision plane drop testing, it also can undertake edge and angle test to ensure the complete performance evaluation for the package...

Vendredi 02 novembre 2018

Quantité : 1 - Prix : 1 999,00 €

Automatical Single Arm Carton of Point, Edge, Face Drop Impact Device Apparatus Product Description Application : Single wing drop impact tester is used to measure the dropping impact incidence when the package in using, transportation and decorating. Besides precision plane drop testing...

Mercredi 17 octobre 2018

Quantité : 1000000 - Prix : 333,00 €

Fonction: lavage enema profond, nettoyage avant, nettoyage à bulles, nettoyage par massage, sèche-linge, température de l'eau ajustable, siège chauffant, spray autonettoyant, télécommande infrarouge, fonction tampon d'amortissement, conservation intelligente de l'eau, éclairage tamisé...

Mardi 16 octobre 2018

Quantité : 100000 - Prix : 444,00 €

HW501 Toilette intelligente intelligente à chauffage instantané avec couvercle automatique pour salle de bain Taille: 681 * 384 * 445 (mm) Ebauche: 300/400 (mm) Tension nominale: 220-230V Fréquence nominale: 50Hz Système de chauffage: petit réservoir Méthode de rinçage: Siphon Jet...

Samedi 25 août 2018

Quantité : 200 - Prix : 15-300USD

Unmanaged Industrial Switch PM3012FSI is optimal at independent research and development of industrial unmanagement PoE switches, have 8*10/100Mbps RJ45 and 2*Gigabit TP/SFP Combo Ports, RJ45 port support MDI/MDIX automatically flip forward capability and line speed. Among them 1-8...

Dimanche 08 juillet 2018

Quantité : 1 - Prix : 1 000,00 €

HD single girder overhead crane is jointly designed and developed single girder overhead crane product with Singapore EZ Crane & Design PTE LTD., which is of current world advanced level. Its technology is advanced, design is based on international standard: DIN (Germany), FEM(Europe)...