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- W4252278791 abstract "Publisher SummaryOne of the first on-line liquid chromatography (LC) detectors to be developed, the refractive-index detector, is a bulk property detector (BPD). BPDs continuously monitor some physical property of the column eluent and by the use of a suitable transducer provide a voltage-time output that is made proportional to the physical property being measured. BPDs have a very restricted sensitivity that is directly because of the principle on which they function. They have also a very limited linear dynamic range, usually less than two orders of magnitude. Their potential dynamic range, however, is relatively large, perhaps four or five orders of magnitude, but this extends into the very low sensitivity areas of normal detector performance. Because of the general susceptibility of bulk property detectors to changes in ambient conditions, column flow rate and mobile-phase composition (other than the presence of an eluted solute), they cannot be used with gradient elution, temperature programming, or flow programming techniques. BPDs are almost solely used under isothermal and isocratic conditions of development. The major areas of application are for detecting solutes that do not absorb in the UV wavelength range and where low sensitivities can be tolerated or are required. BPDs are frequently employed in gel-permeation chromatography where in many cases the solutes do not contain UV chromophores and in preparative chromatography. The chapter also discusses the other areas of applications of BPDs." @default.
- W4252278791 created "2022-05-12" @default.
- W4252278791 date "1977-01-01" @default.
- W4252278791 modified "2023-09-27" @default.
- W4252278791 title "Chapter 1 General Characteristics of Bulk Property Detectors" @default.
- W4252278791 doi "https://doi.org/10.1016/s0301-4770(08)61011-8" @default.
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