Efficient detection of volatile aromatic hydrocarbon using linseed oil–styrene–divinylbenzene copolymer coated quartz crystal microbalance

RSC Advances ◽  
2015 ◽  
Vol 5 (73) ◽  
pp. 59533-59540 ◽  
Author(s):  
Rashmita Das ◽  
Rajib Bandyopadhyay ◽  
Panchanan Pramanik

A polymer film with high sensing ability QCM for benzene, toluene, o-xylene and ethyl benzene vapors has been produced from the co-polymerization of styrene, divinyl benzene and linseed oil with an optimum ratio at 120 °C.

2013 ◽  
Vol 185 ◽  
pp. 293-300 ◽  
Author(s):  
Rashmita Das ◽  
Sudip Biswas ◽  
Rajib Bandyopadhyay ◽  
Panchanan Pramanik

Chemosensors ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 20 ◽  
Author(s):  
Rianjanu ◽  
Hasanah ◽  
Nugroho ◽  
Kusumaatmaja ◽  
Roto ◽  
...  

Vapors of volatile organic compounds such as benzene, toluene, and xylene (BTX) may cause health concerns. The sensitive detection of these compounds in air remains challenging. In this study, we reported on modification of the Quartz Crystal Microbalance (QCM) sensing chip using polyvinyl acetate (PVAc) film as active coating for the analysis of BTX vapors. The PVAc film was deposited on the QCM sensing chip surface by a spin coating technique. The morphology of the PVAc films was confirmed by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The sensitivities of PVAc based QCM system for benzene, toluene, and xylene analyses were 0.018, 0.041, and 0.081 Hz/ppm, respectively. The high sensitivity of the proposed QCM system for analysis of BTX vapors is believed to be due to the effective interaction between the PVAc film and BTX molecules. The analyte vapor pressure appears to also affect the sensitivity. These data show that the prepared QCM sensor has a low time constant, good reproducibility, and excellent stability. It offers an alternative to the developed methods for detection of BTX and possibly other aromatic hydrocarbons in the air.


2019 ◽  
Vol 25 (6) ◽  
pp. 879-884
Author(s):  
Takahiro Sakai ◽  
Hayato Seki ◽  
Shogo Yoshida ◽  
Hayato Hori ◽  
Hisashi Suzuki ◽  
...  

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