A simple and inexpensive student spectroscope

Edwards, R.; Brandt, Wayne; Companion, Audrey L.

doi:10.1021/ed039p147

Cited by 16 publications

(17 citation statements)

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“…These devices do not require a separate light source or sample holder since the “samples” are emission sources; students simply point the device at the light and observe the resulting spectral lines (Figure a). Most devices are constructed using a cardboard box, ,− but PVC pipe and film canisters , are sturdier options (Figure b). (Although 35 mm film is not commonly used today, empty canisters are available online.)…”

Section: Spectroscopes For Viewing Emission Spectramentioning

confidence: 99%

Review of Student-Built Spectroscopy Instrumentation Projects

2020

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One challenge of teaching chemical analysis is the proliferation of sophisticated, but often impenetrable, instrumentation in the modern laboratory. Complex instruments, and the software that runs them, distance students from the physical and chemical processes that generate the analytical signal. A solution to this challenge is the introduction of a student-driven instrument-building project. Visible absorbance spectroscopy is well-suited to such a project due to its relative simplicity and the ubiquity of absorbance measurements. This Article reviews simple instructor- and student-built instruments for spectroscopy, providing an overview of common designs, components, and applications. This comprehensive summary includes options that are suitable for in-person or remote learning with K–12 students and undergraduates in general chemistry, analytical chemistry, instrumental analysis, and electronics courses.

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Section: Spectroscopes For Viewing Emission Spectramentioning

confidence: 99%

Review of Student-Built Spectroscopy Instrumentation Projects

2020

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“…Notch filters or edge filters for eliminating excitation light are also often used, but this time, no such interference filters were used. For inexpensive spectroscopes for demonstrations and practical training without using spectroscopic grade gratings, a grating sheet, a CD, or a DVD with a slit on a box is often used for observing emissions. − Similarly, in the present case, the author adopted a transmission grating sheet and a lens–grating–lens type spectroscope using a consumer digital camera with a 90° scattering configuration as shown in Figure a.…”

Section: Methodsmentioning

confidence: 99%

Color-Observable Simple Raman Spectroscope for Live Exhibitions Using a Consumer Digital Camera

Nomoto

2021

J. Chem. Educ.

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A very simple and color-observable homemade Raman spectroscope with easy preparation is introduced by simply adding low-cost components (a transmission diffraction grating sheet, a magnifying glass, a paper mask, and a DPSS laser pointer module) to a consumer digital camera. The Raman spectral images and profiles of cyclohexane, carbon tetrachloride, ethanol, and toluene by the fabricated Raman spectroscopes are presented. The resolution and the detection limit of ethanol aqueous solution are also discussed. A usage in a live-streamed demonstration was also introduced.

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“…Spektrofotometer yang dibangun pada penelitian ini mengadopsi konsep spektroskop yang telah diterapkan untuk menganalisis spektrum radiasi yang dipancarkan beberapa jenis lampu [12,13]. Secara skematik, disain sistem ditunjukkan pada Gambar 1 dan fotografi sistemnya ditunjukkan pada Gambar 2.…”

Section: B Disain Perangkat Eksperimenunclassified

Aplikasi Spektrofotometer Kisi Sederhana dan Lampu Pijar pada Eksperimen Radiasi Benda Hitam untuk Penentuan Konstanta Plank

Nugroho¹,

Pernandes²,

Lapanporo³

2019

Positron

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Telah dilakukan rancang bangun spektrofotometer untuk menganalisis spektrum cahaya tampak yang digunakan pada eksperimen radiasi benda hitam dalam penentuan konstanta Planck. Komponen utama alat ini terdiri dari lampu pijar sebagai sumber radiasi benda hitam, kolimator sebagai pengarah sinar, lensa cembung sebagai pengkonsentrasi sinar, kisi difraksi sebagai pendispersi, dan kamera sebagai detektor, serta perangkat lunak Tracker sebagai program analisis data. Spektrum radiasi benda hitam direkam untuk empat variasi suhu yang diperoleh dengan mengubah besar arus masuk pada lampu pijar. Agar suhu benda hitam dapat ditentukan dengan lebih akurat, derau spektrum dihilangkan dengan melakukan fiting polinomial orde 10 pada data. Dari data yang diperoleh, nilai konstanta Planck dihitung dengan membandingkan dua intensitas spektrum pada panjang gelombang yang sama. Berdasarkan perhitungan, didapatkan nilai Planck sebesar h=(5,65±1,53)×10^(-34) J s. Meskipun akurasinya masih perlu ditingkatkan, metode ini memiliki keuntungan berupa prosedur eksperimen yang lebih sederhana dan adanya informasi visual spektrum benda hitam dalam representasi warna maupun grafik. Hal tersebut dapat membantu mahasiswa memahami karakteristik spektrum malar radiasi termal yang sangat berbeda dari spektrum diskrit deeksitasi atomik.

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A simple and inexpensive student spectroscope

Abstract: Presents a design for a simple and inexpensive student spectroscope.

Cited by 16 publications

References 0 publications

Review of Student-Built Spectroscopy Instrumentation Projects

Review of Student-Built Spectroscopy Instrumentation Projects

Color-Observable Simple Raman Spectroscope for Live Exhibitions Using a Consumer Digital Camera

Aplikasi Spektrofotometer Kisi Sederhana dan Lampu Pijar pada Eksperimen Radiasi Benda Hitam untuk Penentuan Konstanta Plank

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