When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Flow injection analysis - Wikipedia

    en.wikipedia.org/wiki/Flow_injection_analysis

    The reaction product then flows through a detector. Most often, the detector is a spectrophotometer as the reactions usually produce a colored product. One can then determine the amount of an unknown material in the sample as it is proportional to the absorption spectrum given by the spectrophotometer. After moving through the detector, the ...

  3. Spectrophotometry - Wikipedia

    en.wikipedia.org/wiki/Spectrophotometry

    Table-top spectrophotometer Beckman IR-1 Spectrophotometer, c. 1941 Beckman Model DB Spectrophotometer (a double beam model), 1960 Hand-held spectrophotometer used in graphic industry [1] Spectrophotometry is a branch of electromagnetic spectroscopy concerned with the quantitative measurement of the reflection or transmission properties of a ...

  4. Phosphorus cycle - Wikipedia

    en.wikipedia.org/wiki/Phosphorus_cycle

    The phosphorus cycle is the biogeochemical cycle that involves the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.Unlike many other biogeochemical cycles, the atmosphere does not play a significant role in the movement of phosphorus, because phosphorus and phosphorus-based materials do not enter the gaseous phase readily, [1] as the main source of gaseous phosphorus ...

  5. Gravimetric analysis - Wikipedia

    en.wikipedia.org/wiki/Gravimetric_analysis

    Gravimetric analysis describes a set of methods used in analytical chemistry for the quantitative determination of an analyte (the ion being analyzed) based on its mass. The principle of this type of analysis is that once an ion's mass has been determined as a unique compound, that known measurement can then be used to determine the same analyte's mass in a mixture, as long as the relative ...

  6. Spectronic 20 - Wikipedia

    en.wikipedia.org/wiki/Spectronic_20

    Developed by Bausch & Lomb and launched in 1953, the Spectronic 20 was the first low-cost spectrophotometer. [5] It rapidly became an industry standard [7] due to its low cost, durability and ease of use, [8] and has been referred to as an "iconic lab spectrophotometer". [9] Approximately 600,000 units were sold over its nearly 60 year ...

  7. Marine biogeochemical cycles - Wikipedia

    en.wikipedia.org/wiki/Marine_biogeochemical_cycles

    While the water cycle is itself a biogeochemical cycle, flow of water over and beneath the Earth is a key component of the cycling of other biogeochemicals. [8] Runoff is responsible for almost all of the transport of eroded sediment and phosphorus from land to waterbodies . [ 9 ]

  8. File:Diagram of the water cycle including some human activity ...

    en.wikipedia.org/wiki/File:Diagram_of_the_water...

    English: Diagram of the water cycle including some human activity created for a schools outreach project by the Gro for GooD project, ...

  9. Phosphoric acids and phosphates - Wikipedia

    en.wikipedia.org/wiki/Phosphoric_acids_and...

    The general formula of a phosphoric acid is H n−2x+2 P n O 3n−x+1, where n is the number of phosphorus atoms and x is the number of fundamental cycles in the molecule's structure; that is, the minimum number of bonds that would have to be broken to eliminate all cycles.

  1. Related searches determination of phosphorus by spectrophotometer value of water cycle diagram

    phosphorus cycle in waterphosphorus cycle wiki