SAMPLING - 643 Annonces

Mercredi 18 septembre 2019

In chromatographic experimental analysis, a device that can quantitatively feed a sample bottle into a chromatographic column is called a sample vial. Sample vials are divided into manual and automatic sample vials. The automatic sample vial is an intelligent and automatic sampling...

Lundi 16 septembre 2019

Push-in Type The design of push-in automatic sample vial is also common, which is very similar to the manual sample vial. The syringe moves to the sample vial inhale a predetermined amount of sample, then moves to the injection port, and injects the sample into the sample ring. The...

Mercredi 11 septembre 2019

For an inhalation automatic sample vial, the sample is sucked into the sample ring by the suction generated by the syringe. This design of automatic sample vial was very popular in the early days because of its simplicity and reliability. However, with the emergence of the other two designs...

Samedi 07 septembre 2019

Quantité : 5000platfo - Prix : 80000usd

Bolt: Mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with an external thread) is required to be fitted with a nut for fastening the two parts with through holes. This type of connection is called a bolted connection...

Vendredi 30 août 2019

Source of Pollution Potential sources of pollution include the following: 1. Pollution from the previous sample which remained in the sample vial. 2. Pollution from the sampling position. 3. Pollution from water remained on the sampling rope. 4. Pollution from the sample vial itself...

Jeudi 29 août 2019

Quantité : 1 - Prix : 0-50000

We are one of the professional air quality monitoring equipment suppliers, please always feel free to contact. The atmosphere is the basic condition for our survival. Air pollution has become a serious problem that affects human health and threatens human survival because of the persistent...

Dimanche 18 août 2019

Stimulating the coil makes a magnetic induction to the tested material. The induced electromotive force received by the testing coil is related to the shape and size of the material hysteresis loop. When the low-frequency sinusoidal wave excitation voltage is magnetically induced...

Dimanche 18 août 2019

Bolt: Mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with an external thread) is required to be fitted with a nut for fastening the two parts with through holes. This type of connection is called a bolted connection...

Vendredi 16 août 2019

The sample vial also referred to the aseptic vial, is an essential tool for the detection of pollution contaminants. It is usually used with an automatic sampler or just as a storage device. In accordance with the vial material, there are mainly two types of sample vial – glass type...

Jeudi 15 août 2019

In the detection of air pollution, taking samples with glass fiber extraction thimble is a common method. And here we will focus on one reason having an influence on weighing the extraction thimbles, which is the air humidity. As we all know, the environment when analyzing is limited...

Mardi 13 août 2019

In the labs, experimenters always take samples with fiberglass extraction thimbles. And weighing the extraction thimbles is quite important for the results of the experiments. Does the cooling time have obvious influences when weighing the extraction thimbles that are taken out of the ovens...

Lundi 12 août 2019

With the continuous development of the sample vials, more and more types and functions of the sample vials appear in laboratory analysis. The capacity of sample vials is bigger and bigger. The sampling speed of the sample vials is faster and faster. The sampling accuracy is higher and higher...

Jeudi 08 août 2019

Considering the comparative simplicity and maturity of the glass vial, customers rarely complain about its quality. However, the applicability of the autosamplers is actually essential to big manufacturing companies. Severely in terms of International Standard, vials of Hawach are...

Mercredi 07 août 2019

The thimble is utilized in extraction, so the dissolution rate of impurities is a comparatively deductive target. For the deficient data of cellulose extraction thimbles, the mental content in glass fiber ones has to be tested, and respective results of different sizes are listed...

Vendredi 02 août 2019

Usually, the sample contains something that is not of interest to the analyst. Salt, lipids, lipid-containing substances, humic acid, hydrophobic proteins, and other biological substances are some substances that may interact with the HPLC column in use. These substances have less...

Vendredi 12 juillet 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...

Lundi 08 juillet 2019

What is the sample vial? Sample vials, also named as sampling bottles, purification bottles, aseptic bottles, clean bottles, filter bottles, etc., are essential for detecting pollution. According to International Standard, it is specially qualified for cleaning appliances so that...

Jeudi 04 juillet 2019

Activation, also known as solvation, add a suitable solvent to expand the functional groups on the adsorbent and remove possible interferences on the adsorbent. Equilibrium, remove the activated solvent to create a suitable solvent environment for sampling. Usually, use the same solvent...

Jeudi 04 juillet 2019

The glass fiber extraction thimble is made of ultra-fine glass fiber and is used for various applications. It's a high-efficiency filter device for collecting harmful substances such as soot, acid mist, and beryllium substitute. It has the advantages of high-temperature resistance...

Lundi 01 juillet 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...

Lundi 24 juin 2019

When selecting the customer, it is recommended to first confirm the vacuum and pumping speed required for the experiment, or you can choose according to the application. The main uses of Standard Diaphragm Vacuum Pumps include the following: 1. Vacuum drying oven: It is suitable...

Lundi 24 juin 2019

Glass fiber extraction thimbles can be used to collect harmful substances such as smoke, dust, acid mist and so on. It is widely used at home and abroad. It has excellent performance in high-temperature resistance, low weight loss, high efficiency, and high strength. Just because...

Vendredi 21 juin 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...

Vendredi 21 juin 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...

Mardi 11 juin 2019

Overview To determine the physical and chemical parameters of natural water, laboratory workers always use polyethylene and borosilicate glass sample vials for common sampling. Furthermore, it is better to use chemically inert material. The frequently-used sample vialshave multiple...

Vendredi 12 avril 2019

- Plastic Medicines Bottles - Product Name: Medicines Bottles Material: PET materials Capacity: 25ml-125ml Slogan: Clean and beautiful, environmentally friendly and durable - Introduction: - These series of medicine containers for sale are generally made of PET materials, some of...

Samedi 03 novembre 2018

Quantité : 1 - Prix : 507,00 €

Application : The instrument is used to test the elongation characteristics of aluminum, copper, iron and other metal materials. This machine is made of metal materials do damage elongation test; advanced software design and sophisticated electronic sensor technology to measure the...

Dimanche 23 septembre 2018

Quantité : 1 SET - Prix : $ 4000

- The brief introductions of QTZ-3D portable electric soil drilling rig QTZ-3D portable electric soil drilling rig is an electric version of the QTZ-3 (gasoline engine) produced by Shandong Master Machinery Group Co., Ltd. The improvement of QTZ-3D electric soil drilling rig is...

Dimanche 23 septembre 2018

Quantité : 1 SET - Prix : $ 4000

- The brief introduction of QTZ-2 portable drilling rig QTZ-2 portable soil drilling rig is a upgraded product of the QTZ-1 portable soil drilling rig.The rig adopts the more power, and the impact force is stronger and the drilling depth is deeper, which can drill up to 10~15 meters...

Dimanche 23 septembre 2018

Quantité : 1 SET - Prix : $ 4000

The Brief Introductions of QTZ-1 soil sampling rig QTZ-1 portable soil drilling rig is a portable soil sampling drilling machine developed by Shandong Master Machinery Group Co.,Ltd., which is comparable to a huge hydraulic and pneumatic drilling rig. The drilling rig is a dynamic...