After-Sale Service Of Extraction Thimble

Extraction thimble provided by Hawach scientific is of good reputation for its excellent quality and purity, it is a safe, convenient and effective method for the extraction of solid and semi-solid substances.

Cellulose extraction thimble is suitable for Soxhlet-type, Tecator-type or similar devices, glass extraction thimble is frequently used in situations where temperatures are higher than 100℃ and corrosion liquid is strong, such as solvents incompatible with cellulose extraction thimble.

In products model, cellulose extraction thimble is of wider selection than glass extraction thimble.

After-sale service of Extraction Thimble

All products purchased in Hawach scientific are guaranteed to keep in good repair for one month. If quality problems happen in the guarantee period, you can obtain free maintenance. Additionally, technical support and fittings are available for life.

After-sale service is not restricted by time and we will immediately solve your problems after receiving your feedbacks and deal with them in time.
If you are caught in some problems in application, do not hesitate to contact us at any time. Any damage caused by improper use is not covered in the free warranty.

After-Sale Service Of Extraction Thimble

Hawach Electronic Bottle-Top Dispenser

Hawach Scientific co., LTD. is China’s leading supplier and manufacturer of laboratory consumables. At present, the company has been a research and development, production and sales of integrated enterprises. Has a good reputation in the industry. The main products include chromatographic products, chemical reagents, standard products, laboratory supplies, analytical instrument accessories, and consumables, etc.

Major customers are widely distributed in food, pharmaceutical, government agencies, environmental testing institutions, chemical, scientific research, clinical, biological engineering and laboratory consumables production industries. Among them, it has established medium – and long-term cooperative relations with more than 5,000 users and reached tens of thousands of customers.

Hawach is famous for its honest and reliable service and practical and professional work in the customer base and has won a good reputation among the customer base.

Electronic Bottle-Top Dispenser

Features :
1. Easy to use
The handle is designed to be easy to hold during suction and easy to press during drainage. The piston operates smoothly to ensure good results in daily use.

Hawach Electronic Bottle-Top Dispenser

Types, Classes, And Property Of Filter Paper

Types and Classes of Filter Paper

Hawach scientific supplied two types of filter paper for use chemical analysis, which can be used for high-efficiency general purpose laboratory filtration, including water pollution monitoring, air pollution monitoring and so on.

The two types are named qualitative filter paper and quantitative filter paper. Although both of them can meet the needs of different levels of chemical resistance, loading capacity, interception ability, and particle retention, differences also exist in practical application. The qualitative analysis of the filter paper is often used for qualitative chemical analysis and the corresponding filtration and separation.

The quantitative filter paper is used for the graying weighting analysis experiment after filtration. The most obvious difference between them is the ash weight of each filter paper.

Property of Qualitative Filter Paper

Qualitative filter paper provided by Hawach Scientific generally can be used for general qualitative analysis and for filtration precipitation or suspension in solution, but cannot be used for quality analysis. However, compared with traditional qualitative filter, it gives improved flow rate, high wet strength and increased loading capacity.

Types, Classes, And Property Of Filter Paper

Storage And Application Of Syringe Filter

Syringe filter provided by Hawach Scientific is admired for its originality and elegance. It provides fast flow rates and is generally compatible with most common solvents. And good consistency between batches of filters guarantees high sample throughput and good mechanical strength.

Compared with traditional syringe filter sold in the market, it omits complex and time-consuming preparation work, because the membrane changing and cleaning filter is not required. A broad range of filtration media meets diverse application needs.

Storage of Syringe Filter

The storage process is simple, it only needs to be stored at room temperature and under a dry environment, and it is better to avoid direct sunlight and keep off from the fire.

Application of Syringe Filter

Syringe filter is widely used in the laboratory, which is easy to operate, safe and effective. Our company incorporates a variety of membranes to offer separation and purification solutions for the majority of laboratory needs.

And there is no worry in performance of syringe filter because it provides with a series of merits, such as broad chemical compatibility, strong chemical stability, and low protein binding. Besides, it is designed to bring the highest levels of purity and protein recovery to research.

Storage And Application Of Syringe Filter

Highlights Of HAWACH Syringe Filter

1.Usage

HAWACH syringe filter is used with syringes to filter chemical turbid solution samples, most commonly used in chemical HPLC-MS/GC-MS analysis of liquid and air dedusting, sterilization filtration, biological sample preparation, tissue culture media, microbial media, buffer solutions, etc. And impurities re-movement and so on.

2.Highlights

As an end user, we will give priority to the following factors when using syringe filter. Firstly, please make sure the membrane material + diameter + aperture is consistent with the demand. Then, the extractability, quality consistence and operation pressure will decide the product quality.

2.1 Extractability

Whether there is impurity elution during the filtration process (especially the same type of impurities as the target to be analyzed by the customer). HAWACH syringe filters are not problematic in most experiments, as its filter is a high-purity quality membrane imported from Germany/USA/Japan.

The housing is medical grade PP material, which has good compatibility with most laboratory solvents; 10W Class clean workshop production, no impurities introduced; Ultrasonic welding technology, no impurities introduced. For most laboratory needs, its filters are applicable.

2.2 Quality Consistence

This is also the foreign customers care most. In fact, not only the stability problems of filters, the filter paper, filter membranes, filter cartridges, etc. are also critical.

HAWACH is proud of its product stability with the strict quality control of the factory, including the production of a filter, the detection of raw materials, the monitoring of production processes, and the inspection of finished products.

Highlights Of HAWACH Syringe Filter

Sample Vials For Odor Detection

The odor monitoring and detection have proceeded globally for several decades. Currently, a relatively complete set of technical systems has been formed on malodorous emission and monitoring standards. What we will discuss below is the detailed information of the sample vial used for odor detection.

Features

The sample vial for odor detection is made of high-quality borosilicate glass with an expansion coefficient of 3.3±0.1×10-6/K. It possesses strong chemical corrosion resistance and high-temperature resistance. To be more specific, it is highly resistant to the acid and alkaline samples with great chemical stability and superior mechanical properties.

Besides, the top of the vial adopts a food-grade silicone plug, which is non-toxic, odorless and non-deformable with good sealing performance. Moreover, the valve port employs the PTFE threaded interface with an extremely small friction coefficient. Each valve is equipped with 3 sealing rings, which has high corrosion resistance and inertness to most chemicals, organic solvents, and gases.

Operation Instruction

The first step is to exhaust the sample vial by using a vacuum exhaust treatment system so that the inner pressure of the sample vial is close to minus 1.0×105pa. Then, open the valve of the vial and fill the sample into it until the pressure is back to the normal level. Finally, make sure it is well placed without being subjected to the sunbeam or lights and conduct the detection within 24 hours.

Sample Vials For Odor Detection

Application And Advantage Of Flash Column

Advantage of Flash Column

Hawach Scientific has some obvious advantages in the flash column, which is a contribution to an excellent design team, strict and perfect quality control system.

Concretely speaking, it is solid and reliable, it can meet different performance needs with good peak line, reproducibility, and durability. Moreover, it provides high purity silica gel matrix and high-quality process, which do good to bond diverse stationary phases and satisfy many liquid methods as possible.

Application of Flash Column

Flash column provided by Hawach Scientific is noted for excellent resolution, efficiency, and sensitivity. Currently, it is a device which can quickly realize the separation and provides with a high degree of separation. The retention capacity is slightly weak, and the compound is washed faster, which makes the separation can be realized more quickly.

Besides, high purity and high surface area silica gel and dense stationary phase cover can minimize secondary interaction and provide repeatable separation with a high degree of separation. The separation ability of compounds with a similar structure is improved, and the stability is maintained even at extreme pH value and high pressure.

Application And Advantage Of Flash Column