دورية أكاديمية

SEQUENTIAL DETERMINATION OF Zn, Fe, Mg, Ca, Na AND K IN SYNTHETIZED BABASSU FAME BY HIGH RESOLUTION CONTINUUM SOURCE FLAME ATOMIC ABSORPTION SPECTROMETRY

التفاصيل البيبلوغرافية
العنوان: SEQUENTIAL DETERMINATION OF Zn, Fe, Mg, Ca, Na AND K IN SYNTHETIZED BABASSU FAME BY HIGH RESOLUTION CONTINUUM SOURCE FLAME ATOMIC ABSORPTION SPECTROMETRY
المؤلفون: Ana Carla S. Boeira, Leandro Kolling, Samuel J. Santos, Luiz A. M. Fontoura, Márcia Messias da Silva
المصدر: Química Nova, Vol 47, Iss 8 (2024)
بيانات النشر: Sociedade Brasileira de Química, 2024.
سنة النشر: 2024
المجموعة: LCC:Chemistry
مصطلحات موضوعية: babassu FAME, microemulsion, trace metals, sequential determination, HR-CS FAAS, Chemistry, QD1-999
الوصف: In this work, babassu FAME samples were synthesized by transesterification reaction under alkaline catalysis with sodium glyceroxide and by two steps process with KOH followed by H2SO4 as catalysts. A sequential multi-element method for determination of Zn, Fe, Mg, Ca, Na and K in synthesized babassu FAME by high resolution continuum source flame atomic absorption spectrometry (HR CS FAAS) was developed. The proposed method is based on a microemulsion formation by mixing the babassu FAME samples with 1-propanol and aqueous phase. The mass proportion of the added components was evaluated through a ternary diagram. External and matrix-matching calibration techniques with inorganic and organic standard were investigated. In the five-level spike-recovery test, satisfactory results were obtained by performing the matrix-matching calibration along with inorganic standard solutions. By using the optimized conditions, limits of detection in the range of 0.002-0.12 mg kg-1 were obtained. Accuracy was attested by the agreement of the results obtained in the analysis of three certified reference materials. By applying the microemulsion system and HR-CS FAAS, the sequential determination of six elements was achieved. Therefore, the proposed method was a suitable alternative for metal determination in babassu FAME samples, with good sensitivities, accuracy, and a wide linear working range.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
Spanish; Castilian
Portuguese
تدمد: 1678-7064
0100-4042
العلاقة: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422024000800202&lng=en&tlng=enTest; http://www.scielo.br/pdf/qn/v47n8/0100-4042-qn-47-08-e-20240031.pdfTest; https://doaj.org/toc/1678-7064Test
DOI: 10.21577/0100-4042.20240031
الوصول الحر: https://doaj.org/article/ee54daaf684b44dea559c88fc339496bTest
رقم الانضمام: edsdoj.54daaf684b44dea559c88fc339496b
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16787064
01004042
DOI:10.21577/0100-4042.20240031