HPLC - 411 Annonces

Tuesday 02 July 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...

Friday 28 June 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...

Friday 21 June 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...

Friday 21 June 2019

Flash chromatographic column, also called rapid chromatographic column(rapid column crossing, which means gradient elution, decompression or pressurization of the column), medium pressure chromatographic column（for example, rapid elution is achieved by pressurizing with nitrogen and...

Friday 21 June 2019

The cation chromatography column is a kind of high-performance liquid chromatography, which is a liquid chromatography method for analyzing anions and cations. The method has the advantages of good selectivity, sensitivity, rapidity, and simplicity, and can simultaneously measure...

Wednesday 19 June 2019

Hawach Scientific sorts HPLC out of two series which are Xchroma and Echroma. Xchroma columns possess many and complete types of stationary phase(23 in total) with reliable qualities, while another one is cheaper among lower prices. Essential Technical Parameters Naming Rule It consists...

Friday 14 June 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...

Thursday 13 June 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...

Thursday 13 June 2019

It's important to know the way to choose the right syringe filter for filtration. And the membrane materials used for manufacturing syringe filters often determine your choices. Let's learn the different types of membrane materials for filtering in the lab. As the most popular membrane...

Tuesday 11 June 2019

The installation of the HPLC column should be carried out in the following three steps: a. Unpack the HPLC column and confirm the type, size, date of manufacture, and solvent stored in the column. b. Unscrew the sealing plug from the joints at both ends of the column and put it back...

Friday 07 June 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...

Thursday 06 June 2019

The empty column is assembled from column joints, column tubes, and filters. The HPLC columns joints are constructed with a low dead volume. The column joints are threaded assemblies at both ends, with 7/16-inch external threads on one end and 3/16-inch internal threads on the other...

Thursday 06 June 2019

As one of the useful sample preparation technique, solid phase extraction can prevent many problems, such as incomplete phase separations, recoveries with poor quantity, waste of expensive fragile glassware, and extra disposal of organic solvents, which you may occur if you use the...

Tuesday 04 June 2019

HPLC columns are manufactured and tested to exacting standards. If you use and maintain a liquid chromatography column with the following information, you will not only get better results but also extend the life of your HPLC column. Installation of HPLC columns: 1. First, check that...

Monday 29 April 2019

C1 HPLC columns are made of ultra-pure silica gel, unique stationary phase bonding technology. High column efficiency, good peak shape symmetry, wide pH range. C1 HPLC Columns Localisation : Xi'an City , Shaanxi Province, P.R.China, 710077 Xi'an, Personne à contacter : Bruce Lu, +86...

Wednesday 25 July 2018

Prix : Prix marché compétit

Basée en france, notre société commerciale est un pont entre deux continents et ne fait la promotion que des meilleurs produits d'origine d'ouzbékistan comme les fruits bio, les fruits secs, les produits textiles, plantes médicinales, la céramique et bien d'autres encore sur le marché français...

Tuesday 10 April 2018

Filtre à seringue spécialement conçu par Starlab Scientific avec des extractibles HPLC extrêmement faibles dans une salle blanche de 100 000 degrés. Tous les filtres fabriqués en Allemagne avec un boîtier en PP vierge de qualité médicale sont les plus faciles à extraire et à éliminer...

Wednesday 14 March 2018

Quantité : 1kg - Prix : $520-625

- Epicatechine/epicatechin Bodybuilding CAS 490-46-0 - XI' AN LESEN BIOTECHNOLOGY CO., LTD specializes in the ten years of plant extracts and export trade, to provide customers with high-quality, organic, natural, good price of various plant extracts, fruit and vegetable powder...

Sunday 04 February 2018

Quantité : 1 kg - Prix : $23-80

Product Description Product Name Stevia extract rebaudioside A Sweetness times 200-450 times Color&odor White characteristic Stevia Assay 95-99% Reb-A Testing Method HPLC Loss on Drying ≤4% Ash ≤0.1% Storage Store in a well-closed container away from moisture...

Sunday 04 February 2018

Quantité : 1 kg - Prix : $23-80

Product Description Product Name Sugar diabetics stevia extract rebaudioside A 97% Color&odor White characterisic Using Part Stevia leaf Testing Method HPLC Loss on Drying ≤4% Ash ≤0.1% Sweetness times 350-400 Solubility In water Soluble in 1% solution PH...

Sunday 04 February 2018

Quantité : 1 kg - Prix : $23-80

Product Description Product Name Low Calorie Weight Loss Sugar Substitute Stevia Tablets Sweetness times 60 times Color&odor White and Characteristic Stevia Assay 97-98% Testing Method HPLC Loss on Drying ≤4% Ash ≤0.1% Storage Store in a well-closed container...

Sunday 04 February 2018

Quantité : 1 kg - Prix : $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...

Tuesday 09 January 2018

Quantité : 1 kg - Prix : $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...

Tuesday 09 January 2018

Quantité : 1 kg - Prix : $15-50

The word “licorice” refers to the root of a plant called Glycyrrhiza glabra. It's native to Europe and Asia. The plant is actually classified as a weed in those areas. Chinese licorice listed on products are Glycyrrhiza uralensis, the second variety. Glycyrrhiza's name reflects its...

Tuesday 09 January 2018

Quantité : 1 kg - Prix : $30-150

Rhodiola Rosea is known as “golden root” is an adaptogen herb with tremendous fat burning, energy enhancing and brain boosting power. This unique herb grows at high altitudes in the arctic areas of Asia and Eastern Europe. Rhodiola Rosea help your body adapt to physical, chemical...

Tuesday 15 August 2017

Nutritional Analysis at Creative-Proteomics supports your research in nutritional composition analysis. Nutritional Analysis Service at Creative-Proteomics offers you a state-of-the-art nutritional analysis platform to help you with a diversity of compounds analysis in cereals, vegetables...

Tuesday 11 April 2017

Factory Supply High Quality Milk thistle extract Extract! Products name: Milk thistle extract Appearance: Yellow or White powder Specification: 80% silymarin, 80% silymarin and 30% UV isosilybin Molecular Formula: C25H22O10 CAS NO.: 22888-70-6 Particle Size: 80 Mesh Test Method: HPLC Packing...

Tuesday 11 April 2017

Part of used: Seed Odor: Characteristic Appearance: Brownish Yellow fine powder Active ingredient: Chlorogenic acid CAS NO.: 327-97-9 Molecular Weight: 354.31 Molecular Formula: C16H18O9 Extraction Type : Solvent Extraction Test Method: HPLC What is Chlorogenic Acid? Green Coffee...

Tuesday 11 April 2017

Part of used: Seed Odor: Characteristic Appearance: Brownish Yellow fine powder Active ingredient: Chlorogenic acid CAS NO.: 327-97-9 Molecular Weight: 354.31 Molecular Formula: C16H18O9 Extraction Type : Solvent Extraction Test Method: HPLC What is Chlorogenic Acid? Green Coffee...

Tuesday 11 April 2017

Part of used: Seed Odor: Characteristic Appearance: Brownish Yellow fine powder Active ingredient: Chlorogenic acid CAS NO.: 327-97-9 Molecular Weight: 354.31 Molecular Formula: C16H18O9 Extraction Type : Solvent Extraction Test Method: HPLC What is Chlorogenic Acid? Green Coffee...