Systematic review: exploring the association between facial crease of adult female based on the application of cosmetic skin care product
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Date
2020-09
Authors
Marzuki, Nur Fatin Najihah
Journal Title
Journal ISSN
Volume Title
Publisher
Pusat Pengajian Sains Kesihatan, Universiti Sains Malaysia
Abstract
Accumulation of heavy metal in the environment becomes a health hazard
because of their persistence, bioaccumulation and toxicity to plants, animals and
human beings. Paper is increasingly accredited as a user-friendly and prevalent
substrate for construction of microfluidic devices. Microfluidic paper-based analytical
devices (μPADs) provide a substitute technology for development of economical,
movable, disposable and low-cost diagnostic tools for improving point of care tests
(POCTs). Hence, this microfluidic paper-based analytical devices (μpads) for rapid
detection of iron metal in agricultural soil has reported LOD and LOQ as low as 5 ppm
and 15 ppm for μpads analysis and 0.2 ppm and 0.6 ppm for UV/Visible spectroscopy.
Calibration curve with linear range of 0.5 to 8 ppm for μpad and UV/Visible
spectroscopy obtained 𝑅2=0.9248 and 𝑅2=0.9998 respectively. The fabrication of
μpad using the paraffin wax on the qualitative filter paper was less than 10 minutes.
The detection of iron in agricultural soil samples produced orange-red complex colour
with the application of chromogenic reagent, 1, 10-phenanthroline. The advantages
offered by this μPAD technique proposed herein in association with the improvements
and low cost for iron detections for rapid, simple sample pretreatment and on-site
measurement.
Description
Keywords
heavy metal