BPCL-PSL15 Irradiated Food and Drug Detector Product Introduction Irradiated food and drugs, also known as "ionizing radiation sterilization", refers to exposing food and drugs to ionizing radiation. This process can eliminate microorganisms, bacteria, viruses, or tiny insects on food. Other applications include inhibiting germination, delaying fruit ripening, promoting juice production, and enhancing rehydration. The principle of this sterilization is to destroy the DNA structure in organisms with the energy of electromagnetic wave radiation, making microorganisms unable to continue reproducing, and also causing plant embryos to stop growing and differentiating. 1. Background of irradiated food and drugs Irradiated food and drugs, also known as "ionizing radiation sterilization", refers to exposing food and drugs to ionizing radiation. This process can eliminate microorganisms, bacteria, viruses, or tiny insects on food. Other applications include inhibiting germination, delaying fruit ripening, promoting juice production, and enhancing rehydration. The principle of this sterilization is to destroy the DNA structure in organisms with the energy of electromagnetic wave radiation, making microorganisms unable to continue reproducing, and also causing plant embryos to stop growing and differentiating. 2. Irradiation residual background Fruits, vegetables, or traditional Chinese medicinal materials typically contain or carry minerals (inorganic substances, silicates, etc.). When exposed to ionizing radiation (irradiation), these minerals store energy through their structural voids. When stimulated by excitation light, the stored energy is released in the form of photons. The optically stimulated luminescence (OSL) identification method is based on the number of photons released to determine whether fruits, vegetables, traditional Chinese medicine decoctions, and traditional Chinese medicine solid preparations have been subjected to ionizing radiation (irradiation). 3. Analysis object The BPCL-PSL15 irradiated food and drug detector is used to detect or screen whether food or traditional Chinese medicinal materials and their components have been irradiated. The detectable range includes Chinese herbal medicines, spices, condiments, fruits and vegetables (including dehydrated vegetables), as well as crustaceans and meat products with shell or bone fragments. 4. Analysis principle The BPCL-PSL15 irradiated food and drug detector employs a microsecond-level pulsed LED infrared excitation light source to stimulate luminescence. By stimulating the release of energy stored in minerals carried by the sample during the irradiation process, it can determine whether the sample has been irradiated at 1 Kgy or above. 5. Reference standards (EN)13751:2009 "Standard for Optical Luminescence Detection of Irradiated Food" GB23748-2016 "Screening Method for Identification of Irradiated Food - Method 1" "Pharmacopoeia of the People's Republic of China" 2025 Edition, Volume 4, General Rule 9261, Guiding Principles for Photoluminescence Detection Method of Irradiated Traditional Chinese Medicine The current version of GMP, "Good Manufacturing Practice" Technical characteristics: 1. Photon detection system Detector: Photomultiplier Tube (PMT), photon pulse measurement. Instrument stability: RSD≤1%, calibrated using a 14C (carbon-14) standard light source, and providing three parallel detection data reports of standard light source. The wavelength range is: 300-650 nm PSL value acquisition range: 0-2.5 million cps Photon acquisition frequency: 1.0 times/second, customizable Collection time: 60 seconds, customizable PSL value: calculated automatically by software integration PSL spectrum: PSL photon decay curve or cumulative curve on the main software interface, freely selectable Dark Counts: The system is equipped with a dark count detection option. At room temperature (25°C) and in the absence of light stimulation (with the light window closed), the PSL value is less than 50 cps Blank sample dish counting: The PSL value of the test blank sample dish is less than 700 cps Negative reference count: Weigh approximately 2g of unirradiated chili powder reference material, and test its PSL value to be less than 700cps Positive reference substance counting: Weigh approximately 2g of irradiated chili powder reference substance, and test its PSL value to be greater than 5000 cps 2. Exciting light source Equipped with multiple microsecond-level high-frequency pulsed infrared array diodes (IRLED) excitation light sources as standard, it radiates inwardly towards the sample with 360° coverage, ensuring uniform pulsed irradiation across every area. The excitation light source adopts a drawer-type external quick-change design, facilitating rapid replacement of light source components on-site (within 5 minutes), thus ensuring maximum continuity of normal equipment operation. 3. Sample room Specifications of the sample chamber: Length × Width × Height: 120 × 160 × 60 mm Sample dish: Inner diameter of 50 mm, made of transparent acrylic with a lid The drawer door of the sample room is equipped with a microsecond-level automatic sensing device. The light window shutter cannot be opened unless the drawer door reaches its predetermined position, thus preventing damage to the photomultiplier tube (PMT) due to misoperation The photomultiplier tube (PMT) light window shutter adopts a fully automatic design. When detection begins, the light window shutter automatically opens, and when detection ends, it automatically closes. This ensures that the photomultiplier tube (PMT) can be opened without closing the sample chamber door, preventing the LED infrared light source from damaging the photomultiplier tube (PMT) and effectively reducing the failure rate. 4. System software Communication mode: USB, maximum communication rate of 480Mbit/s, plug and play. File Export: The system can export raw data, spectrograms, and test reports in EXCEL/TXT formats. System version: Standard configuration database version, with database types including at least SQLite, MySQL, PostgreSQL, etc., and the ability to integrate with user-specified proprietary database systems. Data saving: Detection results can be saved manually or automatically. The database data file can be set to enable or disable automatic saving, and the automatic saving interval can be selected, ensuring maximum data integrity. Permission management function: It includes functions such as user login, user logout, user registration, password modification, role assignment, and permission assignment. It can assign corresponding usage permissions according to different roles. Database management functions: including database setup, database backup, database import, and other functions. Audit trail function: The retrieval conditions include retrieval by specified time, sample name, sample number, role name, etc. The retrieval content includes behavior records and data content, and it supports browsing and exporting functions. Automatic signature function: To ensure the authenticity and validity of the test data, the system provides an automatic signature function when exporting test reports. Real-time status display: including sample chamber door, light window shutter, current high voltage, low threshold T1, high threshold T2, detection time, current count, PSL total value, and evaluation result, etc. Real-time data list: The system can display the PSL value in real-time and perform automatic calculations based on the detection time. The system provides a high-voltage real-time adjustment function, which can adjust the suitable voltage range according to the actual situation of different customer usage environments, in order to improve detection sensitivity and accuracy. The system provides a dark count detection selection function, and the upper and lower threshold values for dark counts can be adjusted and set according to different standards. The dark count detection results are indicated as either qualified or unqualified, with different colors to distinguish between different states, in order to meet the needs of various industries. The system provides measurement method settings, including item detection methods, instrument calibration methods, instrument debugging methods, etc., to facilitate irregular calibration and debugging of equipment, effectively ensuring the accuracy of detection. The system provides an emergency fault alert function. If the drawer is accidentally opened during sample testing, the system automatically closes the light window and indicates an abnormality. The evaluation result column will display "Detection abnormality", "Test abnormality", or "Operation abnormality", etc.
BPCL-PSL15 Irradiated Food and Drug Detector Product Introduction Irradiated food and drugs, also known as "ionizing radiation sterilization", refers to exposing food and drugs to ionizing radiation. This process can eliminate microorganisms, bacteria, viruses, or tiny insects on food. Other applications include inhibiting germination, delaying fruit ripening, promoting juice production, and enhancing rehydration. The principle of this sterilization is to destroy the DNA structure in organisms with the energy of electromagnetic wave radiation, making microorganisms unable to continue reproducing, and also causing plant embryos to stop growing and differentiating.
