1801 fully automatic pre-treatment platform for free silica Introduction: Pneumoconiosis is an interstitial lung disease caused by lung tissue reactions due to inhalation of dust. According to the different components of dust, it is divided into common silicosis (silica dust) caused by coal workers' pneumoconiosis, asbestos lung, metal dust, etc. According to the National Occupational Health Standard of the People's Republic of China "Determination of Dust in Workplace Air Part 4: Free Silica Content" GBZ/T192.4-2007, there are three methods for determining free silica: pyrophosphate method, X-ray diffraction method, and infrared spectrophotometry method. The pyrophosphate method is a commonly used analytical method for detecting free silica. This method is stable, easy to preprocess, highly accurate, and has minimal interference; For the assessment of quality control samples and the accuracy of sample testing. Our company and the domestic CDC have launched a fully automatic pre-treatment platform for free silica after years of research and development verification. characteristic: 1. Simultaneously place ≤ 8 samples, and no replacement samples are allowed during the sample making process. Real time temperature display, temperature error ≤ ± 1 ℃. The sample is rapidly heated and maintained at 245 ℃ -250 ℃, with a constant temperature of ± 1 ℃. 2. The instrument is equipped with a precision liquid inlet system, which can set the volume of liquid added. The experimental process automatically adds reagents, automatically adds and heats distilled water, dilutes and flushes the sample, and the addition speed can be adjusted. After the sample is heated at a constant temperature of 245 ℃ in the heating area, the robotic arm automatically transfers the sample to the cooling position for rapid cooling. 4. Precision: After ashing and drying according to the standard, the RSD results of 5 high and low concentration quality control samples (GDOHZKTG012-1,2) are within 5%. 5. Full process visualization; The working status and operating parameters of each sample are clear at a glance. 6. The instrument has an exhaust duct that can discharge acid mist exhaust gas to the exhaust gas recovery duct or fume hood. 7. The instrument comes with an exhaust system, which does not occupy any space in the fume hood. The exhaust system adopts a high-speed impeller fan with high suction and silent operation. Automatically turned on during the experiment, and delayed turned off after the experiment is completed. 8. Equipped with a touch computer, the instrument's operating status and real-time display of the digestion temperature at each workstation. Parameters such as sample quantity, water volume, cooling time, and cleaning can be set. 9. Adopting a fully automatic filtration system, it can automatically complete heating, stirring, cooling, acid washing, water washing, filtration and other steps, providing window type pH measurement. 10. The body material should be resistant to acid, alkali, and organic solvents. 11. Equipped with a customized 210mL sample bottle, sample dilution does not require transfer. 12. Based on wireless Internet, real-time monitoring of the working status of devices and various grades can be completed on Android phones through regular data collection, which can be easily grasped without moving. Technical parameters: Sample grade: 8 digits. Filter paper specification: General slow quantitative filter paper. Temperature control accuracy: Automatic temperature control is between 245-250 ℃, with a temperature control accuracy of ± 1 ℃. Automation: It can display the operating status online without manual intervention, and can automatically mix, filter, and clean. No need for manual transfer, reducing sample loss during the transfer process between different containers. Precision: The relative standard deviation RSD (n=6) of parallel sample data is less than 6%. Reagent: The reagent is open and can be used with original factory reagents, or users can provide their own. Intelligent cleaning station: Innovative liquid addition cleaning system, fast online cleaning, avoiding cross contamination.
Introduction: Pneumoconiosis is an interstitial lung disease caused by lung tissue reactions due to inhalation of dust. According to the different components of dust, it is divided into common silicosis (silica dust) caused by coal workers' pneumoconiosis, asbestos lung, metal dust, etc. According to the National Occupational Health Standard of the People's Republic of China "Determination of Dust in Workplace Air Part 4: Free Silica Content" GBZ/T192.4-2007, there are three methods for determining free silica: pyrophosphate method, X-ray diffraction method, and infrared spectrophotometry method. The pyrophosphate method is a commonly used analytical method for detecting free silica. This method is stable, easy to preprocess, highly accurate, and has minimal interference; For the assessment of quality control samples and the accuracy of sample testing. Our company and the domestic CDC have launched a fully automatic pre-treatment platform for free silica after years of research and development verification.
