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Friday, July 12, 2019

Hawach Scientific mission is to work with our customers to make the world healthier, cleaner and safer. We help our customers accelerate research in the life sciences, solve complex problems and challenges in the analytical field, promote the development of medical diagnostics, accelerate...

Friday, July 12, 2019

Note on the filter paper box that when using the quantitative and qualitative analysis filter paper to filter the precipitate: 1. Generally uses natural filtration, using the filter paper body and the ability to retain solid particles to separate the liquid and solid; 2. Because the...

Friday, July 12, 2019

Today, Hawach want to talk about the pre-treatment process for pesticide residue detection from the perspective of food safety – QuEChERS, and also tell you how to pre-treat pesticide residue food. Introduction The present analytical methods and determining techniques, pre-treatment...

Thursday, July 11, 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Thursday, July 11, 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Tuesday, July 09, 2019

The reversed-phase HPLC columns may be repeatedly injected into a sample containing a strongly retained material, and in particular, the sorbent components such as large molecular weight or hydrophobic biological flow proteins and strong alkaline substances may be adsorbed on the silica medium...

Monday, July 08, 2019

HPLC is the separation of sample components between the column packing and the mobile phase for mass exchange. Therefore, the mobile phase is required to have the following characteristics: a. the flow relative to the sample has a certain solubility, to ensure that the sample components...

Thursday, July 04, 2019

Manufactured from the same raw materials as the ashless grades, the qualitative filter paper is suited for ordinary filtration when we need to determine materials by using qualitative analytical techniques in the lab, with the features of fast flow rate due to their structure. Qualitative...

Friday, June 21, 2019

Normally SPE cartridge has two basic adsorption modes: target compound adsorption mode, impurity adsorption mode; 5 operation modes: gravity operation, manual positive pressure, centrifuge, negative pressure and positive pressure mode. Now let's review the whole process step by step...

Thursday, June 20, 2019

Extraction is often susceptible to matrix interference. One analytical method is fine in this matrix but can become problematic in another matrix. If we encounter such a situation, how can we improve the QuEChERS method to overcome it? For pesticide residues, most of the food samples...

Thursday, June 20, 2019

Filter paper has excellent filtration property and strong absorption performance on liquid. Scientific workers use filter paper as a kind of media in analytical laboratories to separate solution from solid. Currently, there are mainly three kinds of filter papers which can be purchased...

Tuesday, June 11, 2019

Solid phase extraction (SPE) is a separation process by which compound that is dissolved or suspended in a liquid mixture, thereby being separated from other compounds in the mixture according to their physical and chemical properties. There are 4 general functions as below: 1.Matrix...

Wednesday, June 05, 2019

Hawach summarized the advantages of QuEChERS in eight aspects. 1. Recovery Rate QuEChERS technology has the advantage of high recovery rate. Experimental data show that the recovery rate of large quantities of polar and volatile pesticides by QuEChERS is above 85%. 2. Accuracy Laboratory...

Friday, October 27, 2017

Building material combustion calorific value calorimeter Mainly used for the detection of stone, wood, concrete, evenly dispersed mineral wool and polymers and other building materials, the determination of calorific value of fuels, used in building research and technical supervision...

Saturday, October 14, 2017

Quantity : MOQ 5 TONS - Price : USD 1760 PER TON

Quick Details Classification: Ammonium Organic Salt CAS No.: 6009-70-7 Other Names: NO MF: CH3COONH4 EINECS No.: 214-202-3 Place of Origin: China (Mainland) Purity: 99.6% MIN Appearance: White Crystal Application: Used for safety explosive , analytical reagent and organic synthesis...

Tuesday, August 15, 2017

Quantity : 100 - Price : 1,00 €

Gas Chromatography (GC) is an analytical technique for a wide variety of volatile and/or semi-volatile organic compounds identification and quantitation. It is an indispensable technique for analytical lab to analysis a variety assortment sample types. GC facilitates the separation...

Friday, April 14, 2017

Quantity : 2 MT

Name: Yttrium chloride anhydrous CAS: 10361-92-9 Molecular formula: YCl3 Specifications: YCl3 / RECl3: > 99%, Yttrium chloride products accounted for the content of rare earth chloride> 99%, H2O <0.5%</p> Packing: 5kg / bag vacuum packaging, topical iron drum 50kg / barrel...

Saturday, March 04, 2017

Silicon carbide rod is made of high purity green hexagonal silicon carbide as the main raw material, according to a certain ratio of processing blanks, the 2200 ℃ high temperature silicification recrystallization sintering and made of rod-shaped, tubular high-temperature non-metallic...

Saturday, March 04, 2017

Silicon carbide rod is made of high purity green hexagonal silicon carbide as the main raw material, according to a certain ratio of processing blanks, the 2200 ℃ high temperature silicification recrystallization sintering and made of rod-shaped, tubular high-temperature non-metallic...

Saturday, March 04, 2017

Silicon carbide rod is made of high purity green hexagonal silicon carbide as the main raw material, according to a certain ratio of processing blanks, the 2200 ℃ high temperature silicification recrystallization sintering and made of rod-shaped, tubular high-temperature non-metallic...

Saturday, March 04, 2017

Silicon carbide rod is made of high purity green hexagonal silicon carbide as the main raw material, according to a certain ratio of processing blanks, the 2200 ℃ high temperature silicification recrystallization sintering and made of rod-shaped, tubular high-temperature non-metallic...

Saturday, May 07, 2016

- Quick Details - - CAS No.: 7783-6-4 - Other Names: Hydrosulfuric acid, Hydrothionic acid, Sulfhydric acid - MF: H2S - EINECS No.: 231-977-3 - Place of Origin: Sichuan, China (Mainland) - Grade Standard: Industrial Grade - Purity: 99.999%, 99.999% - Appearance: Colorless...

Thursday, January 28, 2016

Product Name: SHMP Specifications: 68.0% Product Category: Sodium Salt Sodium Hexametaphosphate(SHMP) 1.Specification: Specifications Industrial Grade Food Grade Total phosphate, as P2O5%≥ 68.0 68.0 Inactive phosphate, as P2O5%≤ 7.5 7.5 Iron, as Fe %≤ 0.05 0...

Tuesday, November 17, 2015

AC single phase 2 stage filter/EMI filter AC single phase 2 stage filer/EMI filter, EMC filter, AC filter, AC single phase filter, Electromagnetic filter Features and Application of AC single phase 2 stage filter 1.High security and reliability,high performance filters 2.Excellent...

Tuesday, November 17, 2015

AC single phase 3 stage filter/EMI filter, EMC filter, AC filter, AC single phase filter, Electromagnetic filter Features and Application of AC single phase 2 stage filter 1.High security and reliability, high performace filters 2.Good performance of suppressing common mode and...

Friday, September 11, 2015

Quantity : 1 - Price : 1,00 €

This is high quality of marked cards for contact lense, as these UV marked cards are made of top quality of ink and made by more skillful marking machine and workers. this new ink UV marked cards are more better quality than old UV ink marked cards, and they are seen more clear...

Friday, September 11, 2015

Quantity : 1 unit - Price : 1 USD

Description It is a new brand car key of Porsche camera, you can use it to help you to operate with poker analyzer. It can be used for all generations of poker smoothsayer and poker scanners. A Function：There is a lens inside the Porsche car key to scan the barcode poker and report...

Thursday, August 13, 2015

Quantity : 1 - Price : USD300

FA-B Analytical Balance   Features: - Electromagnetic balance sensor - External calibration weight. - Automatic Calibration System. - Whole taring. - 4-level shockproof. - Counting function - Adopting large blue backlighting LCD screen (120*55 mm), which has complete display functions...

Tuesday, January 06, 2015

Quantity : 1 - Price : 1,00 €

This is a latest model of iPhone mobile phone, it is iPhone 6, it is very very popular in the world, but now we already have iPhone 6 mobile phone camera, though it is copy iPhone 6, and it has all functions of iPhone 6. This is a camera for poker analyzer, the distance is reach 20-35cm...

Sunday, January 04, 2015

Quantity : 1 - Price : 1,00 €

These are our new A grade UV contact lenses and new B grade UV contact lenses for UV ink backside marking playing poker cards. They are top quality of new contact lenses, they are light red color, about 10mm size. They are able to see more clearly the marked cards. They are a little...