Food and drug photoluminescence irradiation detection instrument light stimulated luminescence PSL

Food and drug photoluminescence irradiation detection instrument light stimulated luminescence PSL

At present, the thermoluminescence irradiation instrument has been installed in provincial food and drug systems such as Beijing, Anhui, and Sichuan, and has been configured in the customs system

Light Stimulated Luminescence (PSL) System CNtest PSL-T60 Photoluminescent Radiation Detector

Chinese Pharmacopoeia Method: Guiding Principles for Photoluminescent Identification of Irradiated Traditional Chinese Medicine (25th Edition)

Chinese Food Standard GB 23748-2016 Identification and Screening Method for Irradiated Foods

EU standard EN13751: 2009 (standard for detecting irradiated food by photoluminescence) for inspecting irradiated food

1 purpose: Used to detect or screen whether Chinese medicinal materials or traditional Chinese patent medicines and simple preparations have been irradiated. The detectable range includes Chinese herbal medicines, spices, seasonings, as well as products such as crustaceans and cured meats with shells or bone fragments.

2 principleUsing infrared pulse excitation light source to stimulate luminescence, the radiation energy captured by silicate rich samples is excited by a certain wavelength of light,Released in the form of light.

3 sample pretreatmentGenerally, powder or small particle samples do not require processing and can be directly measured as they are; After simple processing such as shearing and crushing, large volume samples can be measured, and after flattening the pill drug, testing can be carried out.

4 Measurement cycle:The single measurement cycle is20Seconds to60Adjustable in seconds.

Food and drug photoluminescence irradiation detection instrument light stimulated luminescence PSL

The PSL-T60 photoluminescence detector is a newly developed photoluminescence (PSL) system by our company, also known as a photoluminescence system. It consists of a pulsed excitation light source (infrared excitation light source), a sample chamber, a detection probe, a photon counting system, and a control unit; Used for rapid identification of whether food and drugs have been irradiated.

Detection principle: Samples of traditional Chinese medicine or spices usually 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, these stored energies will be released in the form of photons. The photoluminescence identification method is a method of identifying whether traditional Chinese medicine decoction pieces and solid preparations containing raw powder have been subjected to ionizing radiation (irradiation) based on the number of photons released.

The sample does not require special pre-treatment and can be directly measured after sampling, with simple operation and strong applicability;

No need for any other consumables, low measurement cost;

Fast detection speed, taking only 60 seconds from placing the sample to obtaining the result;

Three analysis modes can be used: spectrum analysis, photon counting, and quantitative irradiation re measurement, greatly improving the accuracy of determination and the number of sample types;

By adjusting the excitation energy and pulse mode, different intensities of excitation can be performed according to different samples, ensuring good reproducibility of the measurement;

➢ Integrated design, combining photomultiplier tubes and high voltage into a whole, safer and more convenient to use.