ANALYSIS OF ELECTROCHEMICAL SENSOR PERFORMANCE FOR OZONE GAS IN THE LABORATORY AND FIELD SCALE USING STATISTICAL CORRELATION ANALYSIS METHOD

• Main Author: NADHIA CAHYANI (nim : 15312067), ZULFI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/31923
• Institution: Institut Teknologi Bandung

Electrochemical sensor is one of those equipment of air quality monitoring for measuring ozone that has some advantages, including long-term life time, need lower power, compact, portable, and inexpensive. Yet, broad applications of electrochemical sensor for air quality monitoring are still in their infancy because the lack of research electrochemical sensor performance, particularly <br /> <br /> electrochemical sensor with automatic passive method. The purpose of this research is to identification performance of electrochemical sensor for ozone gas type O3-B4 in the laboratory and field. Performance of electrochemical sensor <br /> <br /> was determined by comparing the measurement results of ozone concentration between electrochemical sensor and Neutral Buffer Kalium Iodide (NBKI) method in the laboratory and Non Dispersive Ultraviolet (NDUV) absorption of ozone analyzer Horiba-Ambient O3 Monitor type APOA-370 in Air Quality Monitoring Station (SPKU) at Bundaran Hotel Indonesia and Lubang Buaya Jakarta in order <br /> <br /> to determine accuracy, precision, and correlation level to reference method. Based on the results of testing in the laboratory and the field, about 80% of data didn't comply the criteria of precision and 84.13% of data didn't comply the criteria of accuracy, so that for the operating time of one year and eight months, electrochemical sensor type O3-B4 wasn't precise and accurate anymore to be used as equipment for measuring ozone concentration in ambient air. There was correlation between the measurement results of ozone concentration using electrochemical sensor and NBKI method in the laboratory and Non Dispersive <br /> <br /> Ultraviolet (NDUV) absorption by ozone analyzer at Bundaran HI and Lubang Buaya. Meteorological factors of temperature, humidity, and wind velocity can affect the performance of electrochemical sensors in the field.