کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1240260 969113 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of laser induced breakdown spectroscopy for the determination of micronutrients in plant materials
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Evaluation of laser induced breakdown spectroscopy for the determination of micronutrients in plant materials
چکیده انگلیسی

Laser induced breakdown spectroscopy (LIBS) has been evaluated for the determination of micronutrients (B, Cu, Fe, Mn and Zn) in pellets of plant materials, using NIST, BCR and GBW biological certified reference materials for analytical calibration. Pellets of approximately 2 mm thick and 15 mm diameter were prepared by transferring 0.5 g of powdered material to a 15 mm die set and applying 8.0 tons cm− 2. An experimental setup was designed by using a Nd:YAG laser operating at 1064 nm (200 mJ per pulse, 10 Hz) and an Echelle spectrometer with ICCD detector. Repeatability precision varied from 4 to 30% from measurements obtained in 10 different positions (8 laser shots per test portion) in the same sample pellet. Limits of detection were appropriate for routine analysis of plant materials and were 2.2 mg kg− 1 B, 3.0 mg kg− 1 Cu, 3.6 mg kg− 1 Fe, 1.8 mg kg− 1 Mn and 1.2 mg kg− 1 Zn. Analysis of different plant samples were carried out by LIBS and results were compared with those obtained by ICP OES after wet acid decomposition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 64, Issue 5, May 2009, Pages 369–377
نویسندگان
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