UV-vis spectroscopy, another new addition to PAT, measures electron transitions and therefore mainly detects chromophores—”regions where electron excitation is more likely.” ...

In spite of the fact that this is a limited view, it is commonly believed that UV-VIS spectroscopy can only measure the concentration of a substance in a sample. UV VIS spectroscopy can also provide ...

[1] Electronic Spectroscopy of Ovalene: Reassignment of the S₂ (B₃u)–S₀ (Ag) Transition. The Journal of Physical Chemistry Letters (2024). [2] Torsions of N-methylpyrrole and its cation.

The V-650 is a double-beam spectrophotometer with a photomultiplier tube (PMT) detector. The high sensitivity of the PMT enables accurate measurements of low (and high) concentration samples. By ...

The V-630 is an economical, general-purpose instrument with a compact design to save bench space. Its excellent spectroscopic performance is suitable for routine, QC and research applications.

MANILA, Philippines — The Supreme Court (SC) on Thursday announced that it will begin transitioning to electronic filing (eFiling) for certain petitions and motions beginning July 1. According to ...

Nitrogen finally joins the elite tier of elements like carbon that can form neutral allotropes—different structural forms of a single chemical element. Researchers from Justus Liebig University, ...

UV–vis absorption spectroscopy is commonly used to determine optical bandgaps in semiconductors and elucidate electronic states in organic dyes. (7−9) Dynamic light scattering (DLS), as a ...

Article Published: 28 June 1947 THE TRANS-URANIUM ELEMENTS GLENN T. SEABORG & EMILIO SEGRÈ Nature 159, 863–865 (1947) Cite this article ...

The researchers modified TiO2, a compound commonly used in sunscreen and self-cleaning surfaces. Pure TiO2 only responds to UV light, which makes up less than 5% of sunlight. Adding copper changed the ...