SAMPLES - 8654 Annonces

Jeudi 10 octobre 2019

QuEChERS firstly came out in 2003. The inventors of QuEChERS, Michelangelo Anastasiades and Steve Lehotay, were asked for the three biggest improvements in this method from development to now. They made the following statement. In the period of conceiving the method QuEChERS, we have...

Jeudi 10 octobre 2019

Filter paper plays an important role in the laboratory experiments. Glass fiber filter paper is almost immune to the moisture, and the time of the filtration is not very long. The glass fiber filter paper will be used to filter the solutions that block the filtration pores of the...

Mercredi 09 octobre 2019

Currently, syringe filter is designed for sterilizing and clarifying, and suitable for both medical and laboratory applications. Syringe filter offered by Hawach Scientific is manufactured in a controlled environment with an automated process, which ensures the quality and use value...

Mercredi 09 octobre 2019

Simply speaking, the top space analysis is to analyze the gas in the sample bottle. Laboratory bottles for top spatial analysis are called top-empty bottles. The top spatial gas analysis in the experiments usually need the sample vials. Therefore, choosing suitable sample vials is more important...

Mercredi 09 octobre 2019

Flash column chromatography is an easy and fast method to separate the complex mixtures. It can not only make the separation effect better but also shorten the time. How to put the sample into the flash column is of high importance in the preparation process of flash column chromatography...

Mercredi 09 octobre 2019

Hawach Scientific co., LTD. is a professional technology company integrating analytical chemical product development, manufacturing, sales, and service, Since its establishment, the company has maintained a high speed and steady pace of development, along with scientific and technological...

Mercredi 09 octobre 2019

Solid phase extraction (SPE) is used to reduce sample matrix interference and improve detection sensitivity. The separation selectivity of the solid phase depends on the retention strength of the components that can be retained, so the selection of the solid phase will depend on the...

Mardi 08 octobre 2019

There are two types of glass vacuum filtration that are particularly popular in the market – single-branch and multiple-branch vacuum filtration. Compared with the single-branch vacuum filtration, the multiple-branch vacuum filtration is more frequently used for laboratory sample...

Mardi 08 octobre 2019

It is not difficult to find the early application of QuEChERS in pesticide residue detection in China, mainly for single pesticide detection, and most of the extraction and purification targets are carbamate, organophosphorus and pyrethroid. With the development of technology, the...

Lundi 30 septembre 2019

Syringe filters are widely used in the laboratory. They do not need to change membranes and clean filters, thus eliminating complex and time-consuming preparations. It is mainly used for sample pre-filtration, clarification and bacterial filtration of particles, liquids and gases...

Lundi 30 septembre 2019

Features of Sample Vial Sample vial supplied by Hawach has its special merits, concretely speaking, our company always has a keen sense of smell to the market, keep continuously improve our product quality and production efficiency. Whole sample vials are featured in good quality control...

Lundi 30 septembre 2019

The purifying agent holds an important position in the QuEChERS pre-treatment method. An appropriate selection and application of it would be necessary for the users to improve the efficiency of purification and accuracy of the sampling detection result. Selection of purifying agents...

Lundi 30 septembre 2019

HPLC columns are widely used in many fields, whose column efficiency, capacity, permeability characteristics, and service life are very important. After using for a period of time, there will be changes such as column pressure increase, column efficiency decrease, etc. If no measures are taken...

Lundi 30 septembre 2019

SPE is a kind of sample production technology which is more and more useful in which many problems related to liquid and liquid extraction could be avoided, such as the incomplete separation, non-quantitative recycle, the use of expensive and fragile glass vessels, massive organic...

Dimanche 29 septembre 2019

Hawach glass solvent filter is made of high-quality borosilicate glass, which can be used to filter various aqueous solutions, organic substances, and corrosive liquids. The glass Solvent filter is available in one liter and two liters and consists of a triangular liquid collection bottle...

Dimanche 29 septembre 2019

The cellulose extraction thimble is made of cotton fiber with high cellulose content, good mechanical strength and excellent retention. Particularly suitable for the reaction mixture, food, natural materials, paint, paint extraction of organic matter; paint pigment binder; gas powder and tar...

Samedi 28 septembre 2019

Quantité : 2000 - Prix : 0.5USD/PC

Glasses case / Eyewear case / Hand made glasses case Material: PU/PVC combined with metal plate & blister, iron MOQ: Small order is available Material: Metal covered with PU leather Logo: custom as customers' requirement Logo Printing Method: Screen printing, Foil printing, Embossing...

Samedi 28 septembre 2019

Quantité : 2000 - Prix : 0.3USD

Glasses case/Eyewear case Material: PU/PVC combined with metal plate & blister , iron MOQ: Small order is available Material: Metal covered with PU leather Logo: custom as customers' requirement Logo Printing Method: Screen printing, Foil printing, Embossing,Heat transferal printing...

Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Quantité : 100000pcs/ - Prix : 3USD

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Samedi 28 septembre 2019

Depending on the packing of the HPLC column. The following column types are available on the market: 1. Silica gel HPLC column: Silica gel is the earliest chromatographic column packing used in liquid chromatography. It has a wide range of applications. However, it can only be used...