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Troubleshooting HPLC Column Retention Time Drift

Thursday, August 01, 2019

There are two different cases of retention time: retention time drift and retention time fluctuations. The former means that the retention time changes only in one direction, while the latter refers to the fluctuation of the retention time without a fixed law. It is often helpful...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
The Selection and Sample Loading Mode of Flash Column

Wednesday, July 31, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
How to Prevent the HPLC Column Failure

Tuesday, July 30, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
GEL DOUCHE

Thursday, July 25, 2019

Quantity : 10572 - Price : 0,45 €

* Offre réservée UNIQUEMENT aux professionnels France-Invendus, leader n° 1 du déstockage, vous propose Stock de GEL DOUCHE pièces 10572 prix de vente : 0.45 € Vente en gros uniquement pour plus d'information, merci de nous contacter au 00 212 531 060 175 ou par mail kremiki@france-invedus...

France-Invendus

  • 53940 - Saint Berthevin
  • +33 2 43 01 56 09
China 63000 Construction goods
White CSA Cements

Tuesday, July 23, 2019

The white csa cements is a hydraulic binder based on calcium sulfoaluminate, specially designed to be blended with anhydrite and some other materials such as sand, crashed stone, pigments to make artificial stone and countertops. The white csa cements is manufactured under a strict...

OREWORLD TRADE(TANGSHAN) CO., LTD.

  • 63000 - tangshan
  • 03155392228
Bonded-Phase Chromatography

Friday, July 19, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
The Use Of Silica Gel Flash Columns

Monday, July 15, 2019

Laboratory data show that the optimum flow rate of silica gel flash columns is decided by the length and width of columns and the property of gel. To be more specific, longer and narrower columns will provide more theoretical plates which are able to affect the flow rate. When referring...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Product Highlights & Data Evidence Of HPLC

Monday, July 15, 2019

All the technique cores of HPLC from Hawach Scientific are focused on the characteristics of the chromatogram column. Quality Recognition This is shown as the fact that terminal customers have published more than 500 papers on those journals at home and abroad. For famous oversea journals...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Comparison Between SPE/FLASH and HPLC Column

Thursday, July 11, 2019

Columns Ahead Statement Generally speaking, SPE/FLASH is mainly applied to the pretreatment of samples. People can easily perceive that SPE/FLASH columns separate salt and sugar, while HPLC ones can make glucose, maltose and sucrose apart from the sugar solution, which posses more...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Introduction to SPE Cartridges

Thursday, July 11, 2019

SPE column or SPE cartridges are based on liquid-solid phase chromatography theory, it is a kind of extraction, separation, concentrated sample preparation unit. Mainly used in sample pretreatment of various foods, agricultural and livestock products, environmental samples and target...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
China 515000 B2B Services
Automatic donut cutter machine-Yufeng

Wednesday, July 10, 2019

automatic donut cutter machine-Yufeng Table cut donuts are the industry standard, providing the highest product quality. It works with cutter mold, there are stainless steel, aluminium alloy, silica gel 3 material to meet your require. Different shape and size, also welcome to customized...

SHANTOU YUFENG MACHINERY CO., LTD

  • NO.6 Nanlou Industrial District, Chaoshan Road, Shantou, Guangdong, China - shantou
  • 075488222355
  • +13 9 02 96 05 32
Rapid Chromatography And Flash Column

Tuesday, July 09, 2019

Rapid chromatography Technology for the separation and purification of natural products and biological macromolecules. It has the advantages of easy operation, cheap price, and rapid analysis, and a few other technologies can match the rapid chromatography in the application of purifying...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
JH-D03 BTE FM Balanced Armature Loudspeaker Open Fit Hearing Aid / Hearing Amplifier

Monday, July 08, 2019

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...

Huizhou Jinghao Medical Technology CO., Ltd

  • 516000 - Huizhou
  • +86 0752 2299187
  • +86 18566295705
The Hawach Flash Chromatography Column

Monday, July 08, 2019

As a simple and fast absorption chromatography technique for the routine purification of organic compounds, flash chromatography is developed for the daily purification of reaction products in the lab, which is low costs and achieves separations of samples (0.01-10.0 g weight) in short time...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
China 523960 For the individual
Lady High Heel Shoe Anti Slip Removable Insoles Front Foot Insoles ZG-206

Sunday, July 07, 2019

Lady High Heel Shoe Anti Slip Insoles Front Foot Insoles ZG-206 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...

Dongguan Zhiguo New Material Technology Co., Ltd.

  • 523960 - dongguan
  • 0769 85031810
China 523960 For the individual
Wholesale Self Adhesive Plantar Fasciitis Cushion high heel Sticky gel metatarsal pads...

Sunday, July 07, 2019

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 - Ball of foot microfabric ...

Dongguan Zhiguo New Material Technology Co., Ltd.

  • 523960 - dongguan
  • 0769 85031810
China 523960 For the individual
Foot Spa Socks

Sunday, July 07, 2019

BEST MOISTURIZING SPA GEL SOCKS: The foot spa 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 inner...

Dongguan Zhiguo New Material Technology Co., Ltd.

  • 523960 - dongguan
  • 0769 85031810
China 523960 For the individual
Foot Care Soft Gel Silicon Posture Corrective Heel Cups Gel Heel Cushion ZG-277

Sunday, July 07, 2019

Heel Pain, Posture Corrective Heel Cups Heel Spur Insole ZG-277 1. Relief pain, tired and pressure, shock absorbing, Anti-skidding and depressurizing effectively. 2. Improve step balance and foot strength. 3. Applicable to all thickness sports shoes, working shoes and hiking shoes etc...

Dongguan Zhiguo New Material Technology Co., Ltd.

  • 523960 - dongguan
  • 0769 85031810
Normal Phase HPLC Column and Reverse Phase HPLC Column

Friday, July 05, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
C8 HPLC Columns

Thursday, July 04, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Polymeric HLB SPE Cartridges

Thursday, July 04, 2019

The filler of polymeric HLB SPE cartridges produced by a special copolymerization technology contains a certain proportion of the hydrophilic group and the hydrophobic group. Hydrophobic divinyl benzene structures retain nonpolar compounds and hydrophilic n-vinyl pyrrolidone structures...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
The History Of Flash Column Chromatography

Thursday, July 04, 2019

Flash column chromatography method is to separate the constituents from the mixture and thus purify it. In a word, flash column chromatography makes the samples go through the column which is filled with gel to achieve separation. In the beginning, the founder of flash column chromatography, Mr...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Guide To Select Flash Column

Wednesday, July 03, 2019

Flash column chromatography is an efficient way to separate complex mixtures of compounds in the lab. we use compressed air to push the solvent through the column when we are running flash columns. It can help provide better separation and cut down the running time as while. Flash...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
QuEChERS for Agricultural Residue Pretreatment

Tuesday, July 02, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Cleaning Silica Gel Bonded HPLC Columns

Tuesday, July 02, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
China 213000 B2B Services
Thermally Conductive Silicone Adhesive - 2752

Monday, July 01, 2019

- Thermally Conductive Silicone Adhesive - 2752 - - FEATURES OF GOLOHO-2752 - GOLOHO-2741 is a high performance rtv grease silicone thermally conductive adhesive· Excellent thermal conductive, heat dissipation and adhesion·Small power heater can be directly bonded on the radiator...

  • 213000 - changzhou
  • 0519 85108032
China 213000 B2B Services
Two-Part, 1 To 1 Mix Ratio Transparent Silicone Gel - 324C-AB

Monday, July 01, 2019

- Two-Part, 1 To 1 Mix Ratio Transparent two part silicone gel - 324C-AB - - SPECIAL FEATURES OF GOLOHO-324C-AB - 1: 1Two-part, 1: 1 mix ratioLow viscosityRoom temperature accelerated cure, no small molecule releaseSuitable working time at room temperatureExcellent adhesion and...

  • 213000 - changzhou
  • 0519 85108032
The aim of flash column chromatography is to separate components from the mixture and...

Monday, July 01, 2019

The aim of flash column chromatography is to separate components from the mixture and purify it. Briefly, flash column chromatography allows samples to be separated through columns filled with gels. Flash column chromatography has been widely used in organic chemistry since its inception...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Normal & Reversed HPLC Column

Friday, June 28, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
The Basic Knowledge of Selecting the Most Suitable Flash Column

Wednesday, June 19, 2019

The most important process of the whole purification is selecting the most suitable Flash column. And now we will talk about the key content of the column: stationary phase. Stationary phase, commonly known as filler, is the most central part of chromatography. When we choose the...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
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