### Abstract

The relationship between the vapor-liquid equilibrium and the analytical curve of emission spectrometry is discussed on the basis of Hirata's equation, i.e., y_{1} y_{2} = α( x_{1} x_{2})^{β}, where y is the mole fraction in the vapor phase, x in the liquid phase, α and β are constants for binary systems in a certain concentration range, and the indices 1 and 2 refer to the two components. Evaporation produced by different atomization-excitation systems can be characterized by apparent evaporation constants, α' and β', the values of which fall between the true values, α and β, of the normal distillation, and unity. Two powder techniques were selected representing the limiting cases: injection spark excitation (α' ≈ α, β' ≈ β) and controlled arc excitation (α' ≈ 1, β' ≈ 1). Using these excitation methods, the analytical curves of the impurities in industrial alumina and electrocorundum were studied using cup-electrode techniques with arc excitation. As a result, one of Hirata's rules could be selected for a given pair of elements. An unambiguous correlation between the properties of the analytical curves and Hirata's rules could be established.

Original language | English |
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Pages (from-to) | 139-154 |

Number of pages | 16 |

Journal | Spectrochimica Acta - Part B Atomic Spectroscopy |

Volume | 29 |

Issue number | 5 |

DOIs | |

Publication status | Published - 1974 |

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### ASJC Scopus subject areas

- Analytical Chemistry
- Spectroscopy

### Cite this

**Relationship between the general laws of vapor-liquid equilibria and the analytical curve of emission spectrometry.** / Kántor, T.; Pungor, E.

Research output: Contribution to journal › Article

*Spectrochimica Acta - Part B Atomic Spectroscopy*, vol. 29, no. 5, pp. 139-154. https://doi.org/10.1016/0584-8547(74)80018-2

}

TY - JOUR

T1 - Relationship between the general laws of vapor-liquid equilibria and the analytical curve of emission spectrometry

AU - Kántor, T.

AU - Pungor, E.

PY - 1974

Y1 - 1974

N2 - The relationship between the vapor-liquid equilibrium and the analytical curve of emission spectrometry is discussed on the basis of Hirata's equation, i.e., y1 y2 = α( x1 x2)β, where y is the mole fraction in the vapor phase, x in the liquid phase, α and β are constants for binary systems in a certain concentration range, and the indices 1 and 2 refer to the two components. Evaporation produced by different atomization-excitation systems can be characterized by apparent evaporation constants, α' and β', the values of which fall between the true values, α and β, of the normal distillation, and unity. Two powder techniques were selected representing the limiting cases: injection spark excitation (α' ≈ α, β' ≈ β) and controlled arc excitation (α' ≈ 1, β' ≈ 1). Using these excitation methods, the analytical curves of the impurities in industrial alumina and electrocorundum were studied using cup-electrode techniques with arc excitation. As a result, one of Hirata's rules could be selected for a given pair of elements. An unambiguous correlation between the properties of the analytical curves and Hirata's rules could be established.

AB - The relationship between the vapor-liquid equilibrium and the analytical curve of emission spectrometry is discussed on the basis of Hirata's equation, i.e., y1 y2 = α( x1 x2)β, where y is the mole fraction in the vapor phase, x in the liquid phase, α and β are constants for binary systems in a certain concentration range, and the indices 1 and 2 refer to the two components. Evaporation produced by different atomization-excitation systems can be characterized by apparent evaporation constants, α' and β', the values of which fall between the true values, α and β, of the normal distillation, and unity. Two powder techniques were selected representing the limiting cases: injection spark excitation (α' ≈ α, β' ≈ β) and controlled arc excitation (α' ≈ 1, β' ≈ 1). Using these excitation methods, the analytical curves of the impurities in industrial alumina and electrocorundum were studied using cup-electrode techniques with arc excitation. As a result, one of Hirata's rules could be selected for a given pair of elements. An unambiguous correlation between the properties of the analytical curves and Hirata's rules could be established.

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U2 - 10.1016/0584-8547(74)80018-2

DO - 10.1016/0584-8547(74)80018-2

M3 - Article

AN - SCOPUS:0000168298

VL - 29

SP - 139

EP - 154

JO - Spectrochimica Acta, Part B: Atomic Spectroscopy

JF - Spectrochimica Acta, Part B: Atomic Spectroscopy

SN - 0584-8547

IS - 5

ER -