The objectives of this project are to estimate pesticide residue content on leafy vegetables using a handheld spectrometer; to design and fabricate a portable spectrometer.

Theoretical results: Methodology for estimation of pesticide residues on leafy vegetables was developed using optical spectral reflectance data.
Applied results: A prototype of portable optical device was designed, fabricated, and simulated from our developed methodology.

Methodology for estimation of pesticide residues on leafy vegetables was developed using optical spectral reflectance data.
A prototype of portable optical device was designed, fabricated, and simulated from our developed methodology.

- Scientific papers in referred journals (list):
Viet-Duc Ngo, Le-Tuan-Anh Hoang, Van-Cong Pham, Van-Hieu Ngo, Phuong-Ha Tran. Estimation of pesticide residues on leafy vegetables using a developed handheld spectrometer. Biointerface Research in Applied Chemistry 12(6): 8163-8173.
Ngô Việt Đức, Hoàng Lê Tuấn Anh, Trần Phương Hà, Hoàng Ngọc Lin, Lê Cảnh Việt Cường. Phát triển thiết bị cầm tay đo quang phổ phản xạ của một số loại rau ăn lá tại Việt Nam. Tạp chí Khoa học Nông nghiệp Việt Nam 19(12): 1648-1661.
- Technological products (describe in details: technical characteristics, place):
A handheld spectrometer:
+ Introduction
+ Instruction
+ USB cable, USB driver

Industry, institute.

This device is a simple device. It possible to upgrade, develop and apply in the fact with benefits of small size, simple, useful, easy use. However, it should be developed for future work in phase II.