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Introduction of QuEChERS

Friday, July 12, 2019

Characteristics of QuEChERS QuEChERS is a pretreatment method for pesticide residue detection. This paper refers to the products produced by our company. Its name comes from the acronyms of the words “Quick, Easy, Cheap, Effective, Rugged, Safe”, which are also the characteristics...

Hawach Scientific Co.,Ltd.

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

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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Determination of Coliforms in Water by Filter Membrane Method

Thursday, July 11, 2019

First, the purpose of the request The colorectal flora in water was determined by the membrane method. Second, the basic principles The filter membrane method uses a filter to filter the water sample, and the bacteria are trapped on the filter membrane, and then the filter membrane...

Hawach Scientific Co.,Ltd.

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

Wednesday, July 10, 2019

According to the research from the United States Department of Agriculture, the QuEChERS meth od which extracts pesticide from foods is fast, convenient, cheap, effective and secure. When it compares to the traditional SPE method, QuEChERS not only uses less solvent but also adopts...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
The Method Of Cleaning Sample Vial

Tuesday, July 09, 2019

The cleaning of sample vial is very important. Usually, according to the principle of glass instrument washing and the degree of pollution to choose cleaning methods, there is no fixed mode. The specific methods are as follows: Method one: 1. Dry the sample in the sample vial. 2...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Determination of Coliforms in Water by Filter Membrane Method

Tuesday, July 09, 2019

First, the purpose of the request The colorectal flora in water was determined by the membrane method. Second, the basic principles The filter membrane method uses a filter to filter the water sample, and the bacteria are trapped on the filter membrane, and then the filter membrane...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
A Brief Description of QuEChERS

Monday, July 08, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
China 214115 Equipment goods
High-Low Temperature Test Chamber

Sunday, July 07, 2019

Performance characteristics of low temperature chamber: 1. In the refrigeration system, the condensation adopts air cooling mode, which has a wide temperature control range, which can meet the user's various needs. 2. With a unique balanced temperature control method, with stable...

Pipette Common Problem Solving Method

Friday, July 05, 2019

The equipment and equipment in the laboratory are as comprehensive as the natural world. They say that the sparrows are small and complete, but in the laboratory, the same small but indispensable instrument has a micropipette</ strong> for biochemistry. An essential tool for...

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
A Brief Introduction of QuEChERS

Thursday, July 04, 2019

As an acronym for Quick, Easy, Cheap, Effective, Rugged and Safe, the method of QuEChERS achieves as a variety of sample preparation and clean-up techniques for the analysis of multiple pesticide residues in the field of agriculture. Originally designed for the analysis of fruits and vegetables...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
The Cleaning Methods Of Sample Vials

Wednesday, July 03, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Features and Applications of Capsule Filters

Wednesday, July 03, 2019

Capsule filters are available in various sizes and can be autoclaved, which have four interfaces, two of which inlet and outlet of the filtered liquid are in the middle. One of the two sides is a vent, the other is a drain. Features of capsule filters 1. 1/4 male thread interface...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Hawach Scientific Stainless Steel Filtration System

Tuesday, July 02, 2019

Stainless Steel Filtration System Product Introduction Hawach stainles s steel filtration system is widely used in research units, inspection and quarantine institutions, quality monitoring institutions, natural mineral water industry, drinking water industry, the pharmaceutical industry...

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
The Knowledge of Glass Microfiber Extraction Thimbles

Tuesday, July 02, 2019

Fitting most commercially available Soxhlet extractors, we offer a variety of selection of high-quality extraction. To achieve an efficient and reliable analysis in the lab, the extraction thimbles are used to extract certain components out of the sample of solid material. The thimbles...

Hawach Scientific Co.,Ltd.

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

Tuesday, July 02, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
China 213000 B2B Services
Heat Resistant Silicone Adhesive/Sealant - 3912R

Monday, July 01, 2019

- Heat Resistant Silicone Adhesive/Sealant - 3912R - - FEATURES OF GOLOHO-3912R - ·UL certificated product(E254532)·One-part RTV silicone rubber· Exposure to humid air can be cured at room temperature· Flowing · Form rubber elastomer · Use at: -50~200℃· Excellent insulating and...

  • 213000 - changzhou
  • 0519 85108032
China 213000 Construction goods
High Performance Silicone Adhesive/Sealant - 3334

Monday, July 01, 2019

- High Performance Silicone Adhesive/heat resistant waterproof Sealant - 3334 - - FEATURES OF GOLOHO-3334 - Convenient: one-part, deoximation, rapid cure at room temperature Neutral, no corrosion to metal, anti-yellowing. Excellent adhesive to hard bonding materials without prime Use at...

  • 213000 - changzhou
  • 0519 85108032
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
China 213000 Equipment goods
Low VOC Silicone Modified Polyurethane Conformal Coating - L325

Monday, July 01, 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...

  • 213000 - changzhou
  • 0519 85108032
The Introduction Of Sample Vial

Monday, July 01, 2019

Sample vial, also known as sampling bottle, purification bottle, sterile bottle, clean bottle, filter bottles, etc., is essential for pollution detection. It is special equipment which is qualified for cleaning according to the international standard ISO3722 “Identification of Cleaning...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
China 411100 Vehicles
36m Concrete Pump Truck

Monday, June 24, 2019

Price : USD44,000 to USD17,0

The 36-meter concrete pump truck is an excellent medium and short arm pump truck, which is made after HBT towing pump, HBC on-board pump and HGY hydraulic concrete dispenser. It is a high-efficiency, integrating running, pumping and cloth. At present, some advanced manufacturers have...

Hunan Teila Heavy Industry Machinery Service Co., Ltd.

  • 411100 - hunan
  • +18 1 53 79 28 25
  • '073152819056
Precipitation when using Filter Papers

Monday, June 24, 2019

When using filter paper, we should pay attention to the fact that when the filter paper is not displayed on the paper box of the filter paper, the precipitation should be paid attention to when using the quantitative and qualitative analysis filter papers. (1) Natural filtration is...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
France 311400 Decoration
Hangzhou Shunhao Metalwork Co., Ltd.

Friday, June 21, 2019

Hangzhou Shunhao Metalwork Co., Ltd. is a professional manufacturer to design and produce all kinds of stainless-steel instrument case like stainless steel case and metal housing for measuring instrument producers. The company owns mighty development and design ability and at present...

Hangzhou Shunhao Metalwork Co., Ltd.

  • 311400 - hangzhou
  • 86 571 85224000
How to Use the Pipette?

Friday, June 21, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
The Solution To Clarify Your Solvent And Sample – Syringe Filter

Friday, June 21, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
Introduction of Sampling System for Cationic Chromatographic Columns

Friday, June 21, 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...

Hawach Scientific Co.,Ltd.

  • 710077 - Xi'an
  • +86 29 89284429
  • +15 1 02 91 81 33
China 201802 Furnitures
Towel bar heated towel rail stainless steel towel rack

Thursday, June 20, 2019

Quantity : 10 - Price : 65,00 €

Brand name: KADIYO Material: Stainless steel Surface temperature: Max45° Specification: 400*500mm / 500*500mm / 600*500mm or customized Heating method: Alloy heating wire Power: 45W / 60W / 75W - 110V-240V OEM & ODM: Acceptable Installation: Wall Mounted Function: Intelligent...

Shanghai Yunuan Heating Equipment Co.,Ltd

  • 201802 - Shanghai
  • 0086 13865946096
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