| ชื่อเรื่อง | : | Evaluation of a dry extract system involving NIR Spectroscopy (DESIR) for rapid assessment of pesticide contamination of fruit surfaces |
| นักวิจัย | : | Acharya, Umesh K. , Subedi, Phul. , Walsh, Kerry B. |
| คำค้น | : | Near infrared spectroscopy. , Applied research. , 820214 Tropical Fruit. , 070605 Post Harvest Horticultural Technologies (incl. Transportation and Storage) , Pesticide residues in food. , Fruit , Apple -- Mango -- Tomato -- Fungicide -- Insecticide -- Aero -- Metiram -- Pyraclostrobin -- Octave -- Prochloraz -- Penncozeb -- Mancozeb -- Amistar -- Azoxystrobin -- Applaud -- Buprofezin -- Lorsban -- Chlorpyrifos -- Near infrared -- Pesticide |
| หน่วยงาน | : | Central Queensland University, Australia |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2555 |
| อ้างอิง | : | http://hdl.cqu.edu.au/10018/922837 |
| ที่มา | : | Acharya, U, Subedi, P & Walsh, K 2012, 'Evaluation of a dry extract system involving NIR Spectroscopy (DESIR) for rapid assessment of pesticide contamination of fruit surfaces', American Journal of Analytical Chemistry, vol. 3, no. 8, pp.524-533, http://dx.doi.org/10.4236/ajac.2012.38070 |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | American journal of analytical chemistry. United States : SciRO.org, 2012. Vol. 3, no. 8 (2012), p. 524-533 10 pages Refereed 2156-8278 (online) , ACQUIRE [electronic resource] : Central Queensland University Institutional Repository. |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | The dry-extract system for (near) infrared (DESIR) technique was implemented using reflectance near-infrared spectroscopy in context of detection of contact pesticide residues on fruit. Based on chemical structure, spectra features and regression statistics for PLSR models, a product containing metiram and pyraclostrobin was chosen from six pesticides for further consideration. Regression models based on spectra of dry extracts of aqueous solutions and either acetone or water washes of contaminated fruit were encouraging (RMSECV of approximately 0.03 - 0.06 mg a.i.). This level of analytical performance would support the use of the technique as a rapid screening tool, with suspect samples then subject to the reference GC-MS analysis method. However, the PLSR model performance was poor across populations of fruit, suggesting that matrix changes in the solvent wash between sets of fruit is problematic. Further work is required to establish whether sufficient variation can be built into a calibration set to overcome this issue, without degrading model performance to the point where it loses practical application. |
| บรรณานุกรม | : |
Acharya, Umesh K. , Subedi, Phul. , Walsh, Kerry B. . (2555). Evaluation of a dry extract system involving NIR Spectroscopy (DESIR) for rapid assessment of pesticide contamination of fruit surfaces.
กรุงเทพมหานคร : Central Queensland University, Australia. Acharya, Umesh K. , Subedi, Phul. , Walsh, Kerry B. . 2555. "Evaluation of a dry extract system involving NIR Spectroscopy (DESIR) for rapid assessment of pesticide contamination of fruit surfaces".
กรุงเทพมหานคร : Central Queensland University, Australia. Acharya, Umesh K. , Subedi, Phul. , Walsh, Kerry B. . "Evaluation of a dry extract system involving NIR Spectroscopy (DESIR) for rapid assessment of pesticide contamination of fruit surfaces."
กรุงเทพมหานคร : Central Queensland University, Australia, 2555. Print. Acharya, Umesh K. , Subedi, Phul. , Walsh, Kerry B. . Evaluation of a dry extract system involving NIR Spectroscopy (DESIR) for rapid assessment of pesticide contamination of fruit surfaces. กรุงเทพมหานคร : Central Queensland University, Australia; 2555.
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