ORGANIC - 2748 Annonces

Lundi 08 juillet 2019

QuEChERS is a pretreatment that has the characteristics of Quick、Easy、Cheap、Effective、Rugged and Safe, which is the reason why it is becoming more and more popular in the new testing methods. It was developed by Professor Anastassiades in 2003, which was used in agricultural testing at first...

Lundi 08 juillet 2019

SPE Technique Introduction SPE(Solid-phase Extraction), is an increasingly popularized technology of sample pretreatment, which is established on the basis of traditional LLE(Liquid-liquid Extraction). Combined with the substance interaction mechanism that like dissolves like, and...

Lundi 08 juillet 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...

Vendredi 05 juillet 2019

Quantité : 1 L - Prix : 18 €

Gift Morocco est une société marocaine qui se trouve au cœur de la région Souss Massa Draa. Elle est spécialisée dans la production et la commercialisation de l'huile d'argan biologique, l'huile de figue de barbarie biologique, ainsi qu'une large gamme des produits cosmétiques naturels...

Vendredi 05 juillet 2019

We recommend materials and applications of two kinds of extraction thimbles in Hawach. The material of extraction thimbles Due to different materials of extraction thimbles, two types of extraction thimbles are sold in the Chinese market. Cellulose extraction thimbles: high-grade...

Jeudi 04 juillet 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...

Jeudi 04 juillet 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...

Jeudi 04 juillet 2019

(1) When loading and unloading or replacing the HPLC columns, the action should be light and the joint should be tightened properly. Strong mechanical vibration must be prevented to avoid voids in the bed. (2) If the instrument is used for routine analysis, the sample type is limited...

Mercredi 03 juillet 2019

Chromatographic analysis technology has been widely used nowadays. It is quite important to clean the chromatographic sample vials carefully. When the number of samples is enormous, a large number of chromatographic sample vials need to be cleaned during the experiments. If the sample...

Mercredi 03 juillet 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...

Mardi 02 juillet 2019

Prix : whatsapp: +212651664

Premium Kosmetics Company est un fournisseur leader expérimenté et l'un des meilleurs producteurs et exportateurs d'huile d'argan 100% biologique, ainsi que de nombreuses autres gammes de produits de soin de la peau et des cheveux. Notre mission chez Premium Kosmetics est de faire...

Mardi 02 juillet 2019

Pip ettes are often used in laboratories, schools, research institutes, hospitals, etc. Among the many pipette types, multi-channel pipettes are pipettes with multiple tips, so some users are in use. It is found that the pipette tip suction amount is inconsistent. What causes the...

Mardi 02 juillet 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...

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 01 juillet 2019

Prix : 25$ per kg.

Whole organic black pepper, fully government certified. Localisation : To 5, Ap Ganh Gio, Huyen Phu Quoc, 20000 Phu Quoc, Personne à contacter : Thuy Le, +84 9 39 62 48 48

Lundi 01 juillet 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...

Lundi 01 juillet 2019

- Low VOC Silicone Modified Polyurethane Conformal Coating - L325 - - FEATURES OF GOLOHO-L325 - ·Convenient to use: organic silicon modified polyurethane type, good waterproof, easy to repair. ·Neutral, no corrosion for many metals, anti-yellowing. Outstanding bond strength for...

Lundi 01 juillet 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...

Vendredi 21 juin 2019

1. Capacity setting For the adjustable pipette, it is usually operated in the range of 10% to 100%. The optimal pipetting capacity is in the range of 35% to 100%. At this time, it is less affected by the operation technique and can better protect the pipetting. Accuracy and precision...

Vendredi 21 juin 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...

Vendredi 21 juin 2019

The material of the nylon membrane filter is aliphatic nylon. It has good hydrophilicity, the appropriate concentration of acid and alkali resistant, and applies not only acid and alkaline aqueous solution, but also suitable for organic solvent, such as s, hydrocarbon, ethers, esters...

Jeudi 20 juin 2019

Quantité : 1000 - Prix : 36,00 €

Comme tout vrai thé, le thé noir et le thé pu'er offrent de nombreux avantages potentiels pour la santé. La recherche a montré que le thé (Camellia sinensis) peut avoir de nombreux effets positifs sur la santé humaine, notamment une amélioration de la fonction cardiovasculaire, une...

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...

Jeudi 20 juin 2019

Firstly, let's divide those bottle-top dispensers into 3 groups according to their materials A. Highly corrosion resistant materials such as PTFE, PFA, boron silicate, platinum, etc. Application: Resistant to high-temperature sterilization (121℃), withstand most of the acid, alkali...

Mercredi 19 juin 2019

Hawach Scientific Co., Ltd is main laboratory supplies and industrial filter manufacturing enterprises, from raw materials and production process to ensure the maximum quality monitoring, each batch of a strict quality testing and product warranty. At present, users are distributed...

Mercredi 19 juin 2019

In order to evaluate water quality, laboratory workers need to analyze the chemical constituents of water. At the same time, they have to consider the interactions between each constituent and the factor of photolysis when choosing the sample vial. It is better to shorten the sample's...

Mercredi 19 juin 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...

Mercredi 19 juin 2019

Hawach scientific takes filtration technology as its core and manufactures high-quality filtration products. Our products after years of research and development, the use of advanced technology and first-class production equipment, to provide customers with all kinds of high-quality...

Mardi 18 juin 2019

A more efficient way to extract compounds from solid materials—Soxhlet extraction (also known as sand extraction). In the laboratory, Soxhlet extractor uses solvent reflux and siphon principle, so that the solid substance is continuously extracted by pure solvent, which saves solvent...

Dimanche 16 juin 2019

OMS skid-mounted (Organic Membrane Filtration System) refers to a form of overall combination of equipment frame and whole equipment. It means that a group of equipment is fixed on the chassis and can be used after moving. It is not necessary to install valves and instruments in the middle...