Brief introduction EHM-X200 Atmospheric Heavy Metal Online Analyzer is the world's first two-in-one automatic analyzer developed by yima Instrument. We innovatively and perfectly combine three patented technologies—the X fluorescence (XRF) non-destructive testing technology, the β-ray absorption detection technology and the air particle automatic enrichment technology together, which is in line with the standard methods of US EPA IO-3.3. It not only can monitor the mass concentration of air particles, but also can simultaneously make quantitative analysis on the elements in air particles. The lowest LOD of the instrument is 10pg/m3, which has reached the advanced world levels and thus this instrument can be widely used in the fields of air quality monitoring, pollution source tracing and analysis, environmental assessment, etc. Applications It can continuously measure and analyze various heavy metal particles in the atmosphere and its applications are as follows: Air quality monitoring Environmental assessment and permits Characteristic analysis on air particles Pollution source positioning and tracing Atmospheric background measuring Pollution forecasting and early warning Technical parameter Monitoring indicators: The instrument can monitor the mass concentration of TSP/PM10/PM2.5 and simultaneously monitor 30 kinds of elements, including Pb (lead), Cd (cadmium), Hg (mercury), As (arsenic), Cr (chromium), Cu (copper), Zn (zinc ), Ni (Nickel), Ba (barium), Fe (iron), Ag (silver), Se (selenium), Br (bromine), Te (tellurium), Sb (antimony), Sn (tin), Ti (titanium ), Co (cobalt), Mn (manganese), Pd (palladium), TI (thallium), Sc (anti), Mo (molyb num), V (vanadium), Cs (cesium), Ga (gallium), Ca (calcium ), K (potassium), Sr (strontium) and Cl (chlorin ) (Other elements are also scalable according to users' needs). Applicable standa ds: HM: USEPA IO-3.3: Determination of Metals in Ambient Particulate Matter Using X-Ray Fluor sc nce (XRF) Spectroscopy PM: Sp cifications and Test Procedures for Ambient Air Quality Continuous Automated Monitoring System for PM10 and PM2.5 Mea uring range: HM: 0~100 µ g/m3 PM: 0~10 mg/m3 The minimum LOD: HM: 10pg/m3 (sampling and analysis time: 4 hours; flow rate: 16.7L/min); PM: <0.5µ g/m3 (24-hour average) Accuracy: HM: <15% (Pb, compared to national standard laboratory methods, the sampling time is above 1 hour.); PM: ± 5 µ g/m3 (24 hours) or less Security: HM: Multiple X-ray radiation protection safety device controls the radiation doses below 2.5µGy/h (at 5 cm from the case); when the door of the instrument is open, the X-ray tube will be automatically closed to protect users' safety. PM: The ionizing radiation inside the instrument is close to the air background values. Working mode: continuous automatic monitoring; one year trouble-free operation and fault self-recovery function. Control mode: computer control, self-diagnosis and settings, real-time status monitoring, saving more than 10 years of monitoring data. User interface: Chinese or English user interface, touch screen, real-time display for sampling flow rate, sampling time, measuring status, heavy metal concentration values (you can choose standard state or non-standard state), content curve and other information. Installation: install in a standard cabinet of a fixed station or install in a moving monitoring car.
It can realize the detection of low content of lead, cadmium, chromium, arsenic and other heavy metals in air particles and the collaborative measurement of PM concentration
