Bioanalytica (Switzerland)

White analytical chemistry-driven, blue-guided LC-MS/MS method for simultaneous quantification of metformin and sitagliptin in human plasma

Abstract A liquid chromatography-tandem mass spectrometry method was developed for the simultaneous determination of metformin (MET) and sitagliptin (SIT) in human plasma. Chromatographic separation was achieved on an Endurus C18 pro-XR 4.6 × 100 mm column, using methanol and 2 m...

The Geometry of Biology and Consciousness

The Geometry of Biology and Consciousness is the biological and consciousness sequel to David Richards, From Born Projection to Bell Nonseparability: A Hopf-Bundle Formulation of Retained Complex Topology in Deductive Entropy (2026). The preceding paper developed the quantum-geom...

The Geometry of Biology and Consciousness

The Geometry of Biology and Consciousness is the biological and consciousness sequel to David Richards, From Born Projection to Bell Nonseparability: A Hopf-Bundle Formulation of Retained Complex Topology in Deductive Entropy (2026). The preceding paper developed the quantum-geom...

From Born Projection to Bell Nonseparability: A Hopf-Bundle Formulation of Retained Complex Topology in Deductive Entropy

This paper is the second in a Deductive Entropy (DE) sequence examining whether established quantum geometry provides a natural cross-scale description of persistence, projection, and complexity. It follows Hidden Complex Topology, Born Quadratic Projection, and Dark Energy, whic...

Ternary Deep Eutectic Solvents in Analytical Chemistry: Design Principles, Sample-Preparation Strategies, and Emerging Sensing Applications

In this review, we emphasize on ternary deep eutectic solvents (TDESs) utilized in environmental and analytical chemistry for separation and sensing purposes in contrast to their binary counterparts, known as simple deep eutectic solvents (DESs). To ensure food security, high wat...