Lumiprobe

自2006年以来，我们生产和销售用于生命科学研究和诊断的高级化学品。我们的目录包括荧光染料、用于寡核苷酸合成的亚磷酰胺、点击化学品和其他试剂。大多数物品都有库存，随时可以运往世界各地。

NMR. Nuclear magnetic resonance is the basic method for the identification of organic compounds. We routinely use ¹H NMR for identity and purity checking. For phosphoramidites and triphosphates, ³¹P NMR is used, too. And we also measure other nuclei (¹³C, ¹⁹F, etc) for all compounds which we prepare for the first time to identify them unambiguously. Two-dimensional NMR (such as HSQC and HMBC) are used for complicated cases. For example, we attributed rhodamine isomers with 2D NMR - something impossible to do with one-dimensional NMR spectra.

HPLC-MS. High pressure liquid chromatography coupled with mass spectrometry is a powerful method which we also routinely use for identity and purity checking. It gives quantitative measure of compound purity along with the measurement of its molecular weight.

This system that we have in house provides both UV spectra, and mass spectra for all of the components of the analyzed mixture - so we check online absorbance spectra of dyes, as well as their molecular weights.