Guidelines for the correct use of particle detectors

In the filling line of the sterile pharmaceutical workshop, the packaging workshop of electronic chips, and the testing laboratory of aviation fuel, there is a group of invisible substances hidden to the naked eye'Invisible Killer' - with a diameter of only0.1-10MmThe tiny particles. They may cause drug spoilage, chip scrap, aviation equipment malfunction, and even threaten human health. And what makes these 'invisible killers' invisible is precisely the particle detector, the' precise catcher '! Today, we will unveil its mysterious veil and see how it safeguards the quality and safety of various industries. Don't think that small particles are harmless, their destructive power is far beyond imagination. And the particle detector is the "core defense line" against such destruction!

The idea of 'as long as the product looks clean, there's no need to test for particles, right?' often leads to big mistakes! Taking the pharmaceutical industry as an example, if intravenous injections contain small particles, they may block capillaries and cause serious adverse reactions such as thrombosis and allergies when entering the human body;01#

Hard core disassembly: particle detectorCapture Micro Black Technology

A particle detector is not simpleThe magnifying glass, relying on a sophisticated optical and data analysis system, achieves precise capture and quantification of particles. Three core technologies support its "micro capture" capability: laser scattering principle: making particles "visible" This is the core technology of mainstream particle detectors. When the laser beam emitted by the instrument passes through the detection area and encounters particles, scattering occurs. The intensity of the scattered light is positively correlated with the size and quantity of the particles. High precision sampling system: ensuring detection representativeness and consistent sample size for each test; Prevent particles from adsorbing on the pipe wall to ensure the accuracy of detection data; Prevent cross contamination. Intelligent data analysis: fast output of reliable results with built-in industrial grade processors, capable of processing within10Complete a single detection within seconds and output data; Equipped with a high-definition touch screen, it can directly display particle size distribution histograms, cumulative counting curves, etc; Support data storage (storable)10More than 10000 records) and exports, compliantGMPTheISO 10993Waiting for industry standards to facilitate traceability and auditing.

Key point: Particle detector vsOrdinary microscope: The microscope can only observe visible particles and cannot accurately count and measure particle size; The particle detector can achieve "automation, high precision, and quantitative analysis", and can detect ultra small particles. The detection capabilities of the two are vastly different!

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These scenes, apart from it fundamentallyCannot comply with regulations

Particle detectors are widely used in various industriesThe mandatory requirement of "quality compliance" is particularly necessary in the following scenarios:01The pharmaceutical industry: The Chinese Pharmacopoeia clearly requires particle testing for intravenous injections, sterile powders, and other essential equipment for drug safety.02electronic/The guardian of chip yield in the semiconductor industry7nmChips with processes up to and including environmental particle requirements (≥ per cubic meter)0.1MmParticle count ≤10A).03The "invisible guardian" of beverage quality in the food and beverage industry. Bottled water, fruit juice, and other beverages containing particles can affect taste and appearance.

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90%The pit that everyone has stepped on! Correct usage guide

The detection accuracy of the particle detector,70%It depends on the operating standards. These common misconceptions must be avoided: correctly operating the golden rule

Before use: in advance30Preheat the machine in minutes to ensure stable laser operation; Calibrate the instrument with standard particle calibration standards to ensure detection accuracy; Clean the injection pipeline to avoid residual contamination. In use: Ensure that the sample is thoroughly mixed (liquid samples should be gently shaken to avoid the formation of bubbles); Avoid sample overflow during injection to prevent contamination of the detection chamber; Before testing different samples, the pipeline must be cleaned. After use: Clean the injection system in a timely manner and rinse the pipeline with purified water or specialized solvents; Regularly replace filters and injection needles, and conduct a comprehensive calibration once a year.Deadly Misconception: Lightning Protection Misconception1Do you want to continue testing if there are bubbles in the sample? wrong! Bubbles may be mistakenly classified as particles, resulting in higher detection results. It is necessary to exclude bubbles before testing. misconception2Long term non calibration? wrong! The laser intensity will decay over time, it is recommended to3Calibrate with standard particles once a month to ensure accurate data. misconception3Can the injection speed be adjusted arbitrarily? wrong! Different samples have different viscosities, so it is necessary to adjust the injection speed according to the standard (such as slowing down the speed for high viscosity samples), otherwise it will affect the repeatability of the detection. Conclusion: From drug safety to chip yield, from aviation safety to beverage quality, particle detectors safeguard the quality bottom line of various industries with their precise "micro capture" capabilities. It is not only a testing device, but also a "passport" for quality compliance and a "sea anchor" for safety assurance.