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Fabrication of paper-based devices by spraying with lacquer for the determination of nickel

หน่วยงาน จุฬาลงกรณ์มหาวิทยาลัย

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ชื่อเรื่อง : Fabrication of paper-based devices by spraying with lacquer for the determination of nickel
นักวิจัย : Thara Nurak
คำค้น : Nickel -- Analysis , Electrochemistry , Measurement -- Equipment and supplies , นิกเกิล -- การวิเคราะห์ , เคมีไฟฟ้า , การวัด -- เครื่องมือและอุปกรณ์
หน่วยงาน : จุฬาลงกรณ์มหาวิทยาลัย
ผู้ร่วมงาน : Orawon Chailapakul , Chulalongkorn University. Faculty of Science
ปีพิมพ์ : 2555
อ้างอิง : http://cuir.car.chula.ac.th/handle/123456789/51682
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : -
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Thesis (M.Sc.)--Chulalongkorn University, 2012

A spraying method with lacquer was developed for the fabrication of paper-based devices. A patterned iron mask was initially placed on a filter paper and held tightly by a magnetic plate placed on the opposite side. After that, acrylic lacquer was sprayed on the filter paper to create hydrophobic area while the hydrophilic area was protected with the iron mask. The optimal conditions for the fabrication of this device were studied including lacquer type and particle retention efficiency of filter paper. Gloss spray lacquer and filter paper No.4 were chosen as optimal lacquer type and particle retention efficiency of filter paper, respectively. To evaluate its efficiency, the paper-based devices were used to determine nickel using electrochemical detection. Cu-enhancer solution was employed to increase sensitivity of nickel determination with the optimal concentration of 4.5 ppm. Under the optimal conditions, linear range was observed in the range of 1 to 50 ppm with a correlation coefficient of 0.9971. The limit of detection (LOD) and the limit of quantitation (LOQ) were found to be 0.5 and 1.97 ppm, respectively. Moreover, these paper-based devices coupled with electrochemical detection were applied to determine nickel in waste water from jewelry factory and compared to those obtained with inductively coupled plasma optical emission spectrometry (ICP-OES). The results indicated that there were no significant variations between this proposed method (4.15±0.043 ppm) and ICP-OES method (4.06±0.013 ppm). Therefore, this spraying method was found to be an excellent alternative for the fabrication of paper-based devices due to its ease of use, low cost and rapidness.

บรรณานุกรม :
Thara Nurak . (2555). Fabrication of paper-based devices by spraying with lacquer for the determination of nickel.
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย.
Thara Nurak . 2555. "Fabrication of paper-based devices by spraying with lacquer for the determination of nickel".
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย.
Thara Nurak . "Fabrication of paper-based devices by spraying with lacquer for the determination of nickel."
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย, 2555. Print.
Thara Nurak . Fabrication of paper-based devices by spraying with lacquer for the determination of nickel. กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย; 2555.