Food standards agencies use spectrophotometers to check the purity of oils, and [Daniel James Evans] has created such a device using a Raspberry Pi. A spectrophotometer shines white light through ...

He’s built a super cheap, but very good spectrophotometer. The idea of a spectrophotometer is simple enough – shine light through a sample, send that light through a diffraction grating ...

The NanoDrop Lite Plus Spectrophotometer is designed for routine nucleic acid and protein assays with only 1–2 µL of sample volume. This cutting-edge sample-retention technology removes the need to ...

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