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Tuesday, March 17, 2020

Cleaning and storage of HPLC column Have a good understanding of the sample made, and wash it with the mobile phase that has the strongest eluting capacity for the sample. For silica gel HPLC column, first wash away the polar impurities with methanol, then use dry dichloromethane...

Tuesday, March 17, 2020

How to understand the chromatographic separation? Put it in short, the more similar the separated substance to the stationary phase, the longer the residence time on it. In this way, different substances in a complex mixed solution can be separated according to time, and the separated...

Wednesday, March 11, 2020

Column chromatography is found important in the labs due to its factors of easy packing procedure, low pressure of operation and low costs as well. Depend on the way that the solvent flows down the column, we can find two different kinds of column chromatography: one is gravity column...

Monday, February 24, 2020

Quantity : 1 contener

Je recherche des palettes de destockage alimentaires et de produits d'entretien de marques ( netto mousquetaire auchan carrefour casino ) de boîtes de conserve de legumes de marques avril des pâtes alimentaires des céréales petit-déjeuner keloggs de la mayonnaise et moutarde et des...

Wednesday, January 22, 2020

The sealing property of the headspace vial is better than that of the threaded vial, and the rubber or silica gel has good re-sealing after the puncture, so it is ideal to preserve the reagents. If some of the organic solvents in use will corrode the silicone or rubber bottle pad...

Tuesday, January 21, 2020

The FLASH column is the heart of the FLASH purification system, like an engine in a car. If you want to do a good job, you must first sharpen the tools. Choosing the correct FLASH purification column is the most critical part of the whole purification process. And choosing the right...

Thursday, January 16, 2020

Highlights of HAWACH flash column HAWACH flash column is packed with proprietary technology for automatic packing. The column bed is compact and uniform, has no “ditch flow effect”, with high resolution and good reproducibility. Different particle sizes of normal phase and reversed-phase...

Tuesday, January 14, 2020

The sample shall be dissolved as much as possible in solvents that are mutually soluble with the mobile phase. Except for special designation, the resolution of the sample HPLC column may be reduced if it is dissolved using a strong solvent. Besides, the sample solution shall be pre-filtered...

Wednesday, January 08, 2020

Price : 800€

Hello everyone, Grand Destocking. Sale of household products: -Laundry detergent, -softener, -dishwashing liquid, -products for floors -shower gel -shampoo -hands Sale in lots. Attractive price anywhere else (packaging in 5 liter cans or 1000 liter cans for export) Wide choice of...

Wednesday, January 08, 2020

With the full line of different sizes, Hawach always provides you the high purity stationary phased packed flash column. And the column cartridge made from medical grade virgin PP and PE materials and different stationary phases prepacked will help you to meet a variety of compounds...

Friday, January 03, 2020

Quantity : 100000PCS - Price : USD0.1~3.00

The basic function of plastic cap is to seal and prevent leakage. However, as the daily cosmetics products tend to be diversified, the requirements for plastic cap are getting higher and higher, not only good sealing but also beautiful design. Products Description Taking perfume cap for example...

Wednesday, January 01, 2020

Quantity : 500 - Price : $300

1,for industrial and agricultural production 2,active ammonia eliminate, antibacterial, inhibition effect Yellow Beeswax in agricultural production in a wide range of applications. In the cosmetics industry, lots of beauty products contain beeswax, such as lipstick, shower gel, rouge, etc...

Wednesday, December 25, 2019

Quantity : 5000SET - Price : 0.4-4

Hotel Amenity Set： With many years experience in the design, manufacture, and sales of hotel supplies product, Yangzhou YILANMEI Hotel Supplies Limited Company is considered as the professional hotel amenities manufacturer. We provide the satisfied hotel amenities service at the preferable price...

Monday, December 16, 2019

The capacity of the SPE cartridge refers to the adsorption amount of the SPE cartridge packing. For silica-based SPE cartridge, the capacity is generally 1 to 5 mg/100 mg, that is, the cartridge capacity is 1%~5% of the mass of the packing. The capacity of the bonded silica ion exchange...

Friday, December 13, 2019

FLASH column is a sample pretreatment technology developed by the combination of liquid-solid extraction and column liquid chromatography. It is mainly used for sample separation, purification and concentration which has been widely used in medicine, food, environment, commodity inspection...

Thursday, December 12, 2019

As a unique chromatography technique that pushes solvent through the column uses by compressed gas or a pump, flash column chromatography is highly appreciated as an advance technique because it makes flow rates of the solvent much faster than the gravity flow. Developed in the 1970's...

Wednesday, December 11, 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...

Wednesday, December 04, 2019

Dongjin Gel series battery is manufactured with special separator and colloidal or foamed silica. The batteries use silica gel to immobilize the electrolyte inside the battery. The proven silica gel technology improves battery cycle life and performance at cold ambient temperatures...

Tuesday, December 03, 2019

Quantity : 800pcs - Price : 3-50usd

The feature of JH-D03 BTE FM Balanced Armature Loudspeaker Open Fit Hearing Aid Hearing Amplifier 1. Modeling exquisite, the button is obvious, easy to operate; 2. Open fit hearing aid can change the ear tube as you need, comfortable wear; 3. Corresponding uncomfortable threshold...

Tuesday, December 03, 2019

Quantity : 800pcs - Price : 3-50usd

Features of JH-907 ITE Mini Ear Amplifier 1. The lightweight and easy operation, you won't feel anything after you wear, very comfortable; 2. Corresponding uncomfortable threshold properly adjust the maximum output, protect ear， low distortion; 3. 3 different earplugs are provided...

Tuesday, December 03, 2019

Quantity : 800pcs - Price : 3-50USD

The feature of JH-D16 Digital 4 Modes BTE Open Fit Hearing Aid Hearing Amplifier 1.Ear zoom hearing aid Bluetooth appearance makes comfortable wear and fashionable look. 1. Ear zoom Bluetooth appearance, makes comfortable wear and fashionable look, the machine looks like a Bluetooth...

Tuesday, December 03, 2019

Quantity : 800pcs - Price : 3-50USD

Features of JH-113 Analog BTE Hearing Aid Hearing Amplifier 1. Behind the ear style hearing aid amplifier, easy to wear and comfortable wearing feeling in either ear; 2. Volume control key, on/ off switch, very simple design and easy operation, suitable for all people; 3.Good sound quality...

Wednesday, November 20, 2019

Quantity : 2000 tons

FEATURES OF GOLOHO-2752 GOLOHO-2741 is a high performance RTV thermal conductivity of silicone sealant · Excellent thermal conductive, heat dissipation and adhesion ·Small power heater can be directly bonded on the radiator without tighten the firmware again to avoid the short circuit...

Sunday, November 17, 2019

Quantity : 18000 L - Price : 4,00 HT

Liquidation liquide vaisselle de grande marque direct usine parfums fruits rouge ,orange,alloe verra ... .conditionner en bidons de 5litres prix 4,00e/HT/BIBON commande minimum de 128 bidons (une palette) soit 512e/HT Tarif degressif en fonction des commandes nous proposons d'autres...

Saturday, November 16, 2019

Quantity : 8000kgs - Price : USD0.025 - USD1.05

1) Properties Detonation-synthesized polycrystalline diamond micro powder The structure resembles the rare natural polycrystalline black diamond, metallic-grey, superior toughness, self-sharpening. The lapping and polishing efficiency of the detonation-synthesized polycrystalline...

Thursday, November 07, 2019

Quantity : 100 - Price : 0.2-5.9USD

Forefoot Cushion ZG-414 EFFECTIVE - Ball of Foot Cushions Pain Relief Kit was designed to help relieve a variety of foot issues including Metatarsalgia, Bursitis, Morton's neuroma, hammertoe deformity, ankle pain, painful aches, tendonitis and diabetic foot pain. ALL DAY COMFORT...

Thursday, November 07, 2019

Quantity : 100 - Price : 0.2-5.9USD

Best solution for all kinds of foot disease: gel foot sleeves, to provide metatarsal joint padding and protection from blisters. Forefoot pain can be caused by many different disorders. The most common condition is metatarsalgia, a painful disorder associated with the metatarsal...

Thursday, November 07, 2019

Quantity : 100 - Price : 0.2-5.9USD

BEST MOISTURIZING SPA GEL SOCKS: The foot spa gel socks provide intensive hydration treatment to moisturizes and softens hard, dry, rough, cracked feet, toes and heels skins. The outer layer of the moisturizing gel sock is made of ultra-fine fluff to make the skin feel soft. The...

Thursday, November 07, 2019

Quantity : 100 - Price : 0.2-5.9USD

A multi-functional correction pads for flat foot, strephexopodia, X-type legs and pigeon toe. Cushioned orthotic arch support pads are efficient Pads to relieve pain and pressure related to Plantar Fasciitis, tendonitis, arthritis, high arch and a variety of Arch problems. Effective...

Wednesday, November 06, 2019

Quantity : 100000pcs/ - Price : 1.5~4800 USD

Dongjin Gel series battery is manufactured with special separator and colloidal or foamed silica. The batteries use silica gel to immobilize the electrolyte inside the battery. The proven silica gel technology improves battery cycle life and performance at cold ambient temperatures...