| 用β射线衰减法测定颗粒物的准确性和有效性验证 |
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| 引用本文： | 俞永江.用β射线衰减法测定颗粒物的准确性和有效性验证[J].四川环境,2014,33(5):89-92. |
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| 作者姓名： | 俞永江 |
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| 作者单位： | 嘉兴威正检测服务有限公司,浙江嘉兴,314031 |
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| 摘 要： | 通过在线监测系统用β射线衰减法测定空气中颗粒物的工作原理、测试数据准确性和有效性。将参比采样器监测数据(重量法)与相应的自动采样器监测数据(β射线衰减法)进行不确定评估和平行性、线性回归分析验证。从而得出,在线监测系统用β射线衰减法测定空气中颗粒物时有较好的线性关系,监测数据准确、可靠,具有一定推广价值。同时,为提高环境监测能力、加强环境执法监管提供可靠依据。
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| 关 键 词： | β射线衰减法 颗粒物 准确性 有效性 验证 |
Verification of the Accuracy and Validity of Determination of Particulate Matter by Beta Ray Attenuation Method |
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| YU Yong-jiang.Verification of the Accuracy and Validity of Determination of Particulate Matter by Beta Ray Attenuation Method[J].Sichuan Environment,2014,33(5):89-92. |
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| Authors: | YU Yong-jiang |
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| Affiliation: | YU Yong-jiang(Jiaxing Weizheng Testing Services Co.Ltd., Jiaxing , Zhejiang 314031, China) |
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| Abstract: | Through automatic online monitoring system,this paper analyzed the working principle of beta attenuation method determining particulate matter in the air,and the accuracy and validity of the testing data.Comparing with the monitoring data of weight method by reference sampler,evaluated the uncertainty,verified parallelism and linear regression analysis.This result showed that the on-line monitoring system using beta ray attenuation determining airborne particles had good linear relationship,the monitoring data was accurate and reliable,had a certain value of popularization.This study can provide reliable basis for improving environmental monitoring capacity and strengthening environmental law enforcement supervision. |
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| Keywords: | Beta ray attenuation method particulate matter accuracy validity verification |
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