Flow injection hydride generator

Warning: Counterfeit and inferior products have infiltrated the analytical instrument industry

——The counterfeit product "WHG-630A Fully Automatic Hydrogen Generator" produced by Beijing Hanshi Instrument Co., Ltd. has been discovered in the market; Wu's metal sleeve high-efficiency glass atomizer

“WHG-630A fully automatic hydride generatorThe "Wu's metal sleeve high-efficiency glass atomizer" is a product of Beijing Hanshi Instrument Co., Ltd. with independent intellectual property rights. After more than 20 years of continuous improvement and innovation by the company, its quality and performance have surpassed the level of similar imported products, and its product quality has been deeply recognized by users.

Recently, it has been discovered that several customers have reported to our after-sales service department that our company's model products are actually not produced by our company, using materials and components, with extremely low costs and poor product quality. Imitation products are mostly produced in southern China, not Beijing. Due to some counterfeit products of our company's models having a very similar appearance to our early products, many consumers find it difficult to distinguish between genuine and fake, resulting in the purchase of counterfeit products and inability to follow up with after-sales service. Consumers are advised to pay attention.

Beijing Hanshi Instrument Co., Ltd. (formerly known as Beijing Hanshi Manufacturing Institute)

　　WHG-630A fully automatic hydride generatorExcellent performance

1. This instrument adopts the most typical flow injection method of hydride atomic absorption spectrometry. Low sampling volume (2-2.5ml per measurement)

2. High sensitivity: Both sensitivity and detection limit can reach the current level.

Element AsPbSbSnSeTeBiGeHgCd

Sensitivity: 0.150.150.300.350.300.350.35-0.50.25

*Up to 0.080.080.80-150.120.120.180.18-0.350.15

The following is the measured data of the sensitivity (ng/mL/1% A) of any selected generator of this type:

Note: This measurement data was obtained using the CAAM-2001 multifunctional atomic absorption spectrometer and high-performance hollow cathode lamp produced by Beijing Haotianhui Science and Trade Co., Ltd. Factory inspection and determination of arsenic, index:<0.15ng/mL/1% A. The actual control is around 0.08. The sensitivity measured varies depending on the performance of the atomic absorption host.

3. Good stability: The relative standard deviation of the factory indicator RSD is less than 3% (in reality, it can be less than 1.5%). Determination of arsenic; Measure the absorbance between 0.2-0.5 and calculate it 11 times.

4. Low detection limit: Calculated at 3 times the standard deviation, the value is about 2/3 of the sensitivity value (in ng/mL), which can meet the measurement requirements of as low as 0.01-0.1ppm in the sample.

5. High efficiency: Excluding sample pretreatment, the single measurement time is less than 30 seconds.

6. Generator usage conditions: except for the carrier gas, it is preferred to use it without labor. Solution dosage (each time): 2-3mL of sample (including cleaning, can be customized according to user's special needs, up to 0.6mL), 4.5-5.5mL of carrier solution, 1-1.5mL of potassium borohydride.

7. High degree of automation: Simply press the start button to automatically complete the entire process of sample injection, generation, reading, and cleaning (the host needs to have remote automatic reading function).

8. Strong adaptability: Both new and old models of atomic absorption spectrophotometers at home and abroad can be used, with peak height readings available, as well as continuous readings (instantaneous or integral), and peak height readings available through visual methods or recorders. And it can be equipped with Zeeman type host (Hitachi or Beijing Geological Instrument GGX-6).

9. Continuous working time is unlimited: there is no disadvantage of the general generator requiring shutdown to clear condensed water accumulated in the gas output tube, otherwise it can enter the absorption tube and splash onto the lens. No need to use desiccants.

10. Light weight and small volume: Net weight of about 2.5kg, length 250mm, width 175mm, height m190m.

11. Stable quality, low failure rate, easy installation, and convenient maintenance.

　　WHG-630A fully automatic hydride generatorProprietary new technology

1. Wu's pneumatic automation technology and electronic new technology * combination: using the pressure of the carrier gas source as energy, using self-developed pneumatic components to complete automatic quantitative measurement, stable flow transportation (replacing peristaltic pumps), cleaning and other programs of the solution, using a self-developed electronic time control system.

2. Exquisite electric quartz absorption tube: Specially treated electric heating wires are tightly and evenly wrapped around the quartz tube without short circuiting, making it easy to install, unload, and adjust the position, and ensuring stable temperature. It is an absorption tube that can be installed between the magnetic poles of a Zeeman type host. The lifespan is about 500 hours.

3. Typical applications of high-performance hollow cathode lamps: All 8 types of hydride elements have "high-performance hollow cathode lamps" by inventor Wu Tingzhao. (Invention certificate number 01-4-006-01), with high emission intensity and sensitivity. By using a large passband width (1-2nm), the sensitivity does not decrease while the emission intensity increases many times, making arsenic and selenium no longer weak emitting lamps. Lead can be used at 217.0nm, and its sensitivity can be comparable to the highest arsenic. Still powered by the host without the need for an external power supply, our company provides a current distributor. Hollow cathode lamps need to be purchased separately (available from our company)

4. Special measures to improve atomization efficiency: This measure cannot be achieved by pure electric models.

This generator has a long service life and a high cost performance ratio. All products of our company are covered by a two-year warranty, responsible for * maintenance, and can provide reference materials for testing methods. Beijing Hanshi Instrument Co., Ltd. * Production, welcome to the factory for assessment. Our company's other product manuals and quotations will be requested separately. Orders can be placed by fax, and responsible for shipping. Cash on delivery.