System for Synchronous Detection Trace of Explosives and Drags Substances on Human Fingers

Samotaev, Nikolay; Vasilyev, V.; Malkin, E.; Gromov, E.; Belyakov, V.V.; Головин, А. В.; Першенков, В.С.; Иванов, И. А.; Shaltaeva, Y R; Matusko, M.

doi:10.1016/j.proeng.2015.08.722

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…Pada penelitian ini misalnya digunakan lampu flash Xenon (Xe) sebagai sumber cahaya. Seperti ditunjukkan oleh Kim et al (2009) dan Samotaev et al (2015), lampu flash Xenon memiliki output relatif rendah di sekitar panjang gelombang 190-220 nm. Noise yang teridentifikasi di sekitar panjang gelombang 190-220 nm dengan nilai absorbans lebih dari 2 yang diperoleh pada penelitian ini juga sejalan dengan hasil beberapa penelitian sebelumnya.…”

Section: Hasil Dan Pembahasanunclassified

Uji Keaslian Madu Lebah Hutan Apis Dorsata Dari Nektar Uniflora Acacia Mangium Menggunakan Spektroskopi Ultraviolet Dan Kemometrika

Suhandy

Yulia

2021

JTP

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Produksi madu uniflora cukup terbatas, khususnya yang dihasilkan oleh lebah hutan Apis dorsata. Madu uniflora yang dihasilkan lebah hutan Apis dorsata dari nektar bunga pohon Akasia Mangium (Acacia mangium) merupakan salah satu madu hutan premium yang sangat populer di Indonesia dan Malaysia. Studi uji keaslian madu uniflora Acacia mangium menggunakan spektroskopi ultraviolet belum dilakukan. Penelitian ini dilakukan untuk mengevaluasi penggunaan spektroskopi ultraviolet dan kemometrika untuk membedakan madu uniflora Acacia mangium dengan madu multiflora yang memiliki warna mirip madu uniflora Acacia mangium. Sebanyak 50 sampel madu uniflora Acacia mangium dan 50 sampel madu multiflora disiapkan sebagai sampel. Sampel tersebut disiapkan dengan cara mencampurkan madu dan air distilasi dengan perbandingan 1:30 (volume/volume). Spektra seluruh sampel madu dan referensi (air distilasi) di panjang gelombang 190-1100 nm (full spectrum) diakuisisi menggunakan spektrometer UV-visible (Genesys™ 10S UV-Vis, Thermo Scientific, USA). Klasifikasi tidak terbimbing menggunakan metode HCA dan PCA menunjukkan sampel madu dapat dikelompokkan ke dalam dua kluster berbeda yaitu kluster madu uniflora dan kluster madu multiflora. Klasifikasi terbimbing menggunakan metode LDA menunjukkan hasil yang sangat memuaskan dengan nilai akurasi sebesar 100% berhasil diperoleh baik untuk kalibrasi maupun prediksi. Kata kunci: Akurasi Klasifikasi; LDA; Madu Acacia Mangium; Pemalsuan Madu; Uji Keaslian

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Section: Hasil Dan Pembahasanunclassified

Uji Keaslian Madu Lebah Hutan Apis Dorsata Dari Nektar Uniflora Acacia Mangium Menggunakan Spektroskopi Ultraviolet Dan Kemometrika

Suhandy

Yulia

2021

JTP

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“…Intense pulsed light (IPL) is the high-power light emitted from a xenon flash lamp. Its duration is on range of milliseconds and wavelength is on range of 200-1000 nm including the visible light [1]. For this reason, the IPL process is also called the flash lamp process [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A review on intense pulsed light process as post-treatment for metal oxide thin films and nanostructures for device application

Noh¹,

Kim²,

Lee³

et al. 2022

Nanotechnology

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The intense pulsed light (IPL) post-treatment process has attracted great attention in the device fabrication due to its versatility and rapidity particularly for solution process functional structures in devices, flexible/printed electronics, and continuous manufacturing process. The metal oxide materials inherently have multi-functionality and have been widely used in form of thin films or nanostructures in device application such as thin-film transistors, light-emitting diodes, solar cells, supercapacitors, etc. The IPL treatment enhances the physical and/or chemical properties of the functional metal oxide through photothermal effects. However, most metal oxides are transparent to most range of visible light and require more energy for post-treatment. In this review, we have summarized the IPL post-treatment processes for metal oxide thin films and nanostructures in device applications. The sintering and annealing of metal oxides using IPL improved the device performances by employing additional light absorbing layer or back-reflector. The IPL process becomes an innovative versatile post-treatment process in conjunction with multi-functional metal oxides in near-future device applications.

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“…[2][3][4] The methods are especially attractive for elemental mass spectral analysis of solids. 5,6 Among other direct sampling methods [7][8][9][10] laser ionization is expected to be very profitable for in situ analysis. Laser ionization has several advantages such as simplicity of sample preparation, absence of consumables, purity of laser plasma.…”

Section: Introductionmentioning

confidence: 99%

A new approach to improving the accuracy of elemental analysis in laser mass spectrometry

Milyaeva

Sil’nikov

Михайлов

et al. 2017

Eur J Mass Spectrom (Chichester)

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It is shown that the main reason affecting the accuracy and reproducibility of the elemental analysis of solids with a laser source of ions is the difference in the ionization cross sections of different elements in the generation of laser plasma. Computer modeling was carried out for the evaporation of the sample and generation of laser plasma at different values of laser power density. The aim of modelling was to determine the cause of the low accuracy of analysis by direct selection of ions from the plasma. The researches have shown that we cannot get satisfactory accuracy of analysis using analytical signal formed only on the base of single-charged ions. At the same time, in the formation of an analytical signal, as a sum of the intensities of the mass peaks of all charges of each element, the accuracy of the analysis does not depend either on the ionization cross section or on the nonreproducibility of the laser radiation power. It is shown that this approach completely eliminates the "matrix effect."

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System for Synchronous Detection Trace of Explosives and Drags Substances on Human Fingers

Cited by 5 publications

References 8 publications

Uji Keaslian Madu Lebah Hutan Apis Dorsata Dari Nektar Uniflora Acacia Mangium Menggunakan Spektroskopi Ultraviolet Dan Kemometrika

Uji Keaslian Madu Lebah Hutan Apis Dorsata Dari Nektar Uniflora Acacia Mangium Menggunakan Spektroskopi Ultraviolet Dan Kemometrika

A review on intense pulsed light process as post-treatment for metal oxide thin films and nanostructures for device application

A new approach to improving the accuracy of elemental analysis in laser mass spectrometry

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