Questions
241
(27) What are the greatest shortcomings of Classical Qualitative Analysis?
(28) Give some examples of method calibration in Instrumental Qualitative
Analysis and establish differences from the equipment calibration implicit
in each.
(29) Compare the role of separations in Classical and Instrumental Qualitative
Analysis, with emphasis on the more common choices in each.
(30) What advantages does Instrumental Qualitative Analysis have over Classical Qualitative Analysis?
(31) Give some examples of each type of reagent used in Classical Qualitative
Analysis.
(32) Discuss the requirements a substance must meet for use as a group separation reagent in Classical Qualitative Analysis.
(33) Distinguish, through examples, the most usual types of reactions used to
identify inorganic and organic species in Classical Qualitative Analysis.
(34) What advantages and disadvantages does the use of immunoreagents in
Qualitative Analysis have?
(35) In what way are Group 2 and Group 3 instruments different as regards
reliability in the qualitative information they provide?
(36) Why do separation techniques boost the reliability of identifications in
Instrumental Qualitative Analysis?
(37) What is a mixed analytical scheme?
(38) Why is fluorimetry a more advantageous choice than photometry for
identification purposes?
(39) Why is IR spectroscopy superior as an identification technique in relation
to other molecular spectroscopies such as photometry and fluorimetry?
(40) In what way is an electropherogram (Fig. 5.18) different from a voltammogram (Fig. 5.16) and a chromatogram (Fig. 5.17)?
(41) Why must the use of a blank be considered in Classical and Instrumental
Qualitative Analysis?
(42) What problems does it pose to use retention times as such for identification
in electrophoretic and chromatographic systems?
(43) Distinguish "internal standard" and "analyte standard" in Instrumental
Qualitative Analysis.
(44) In what way can a computer system be used for identification purposes?
(45) Give some examples of identification ~y use of instrumental systems.
(46) Why do instruments differ in identification power?
(47) How could the presence of copper traces in a wine be confirmed using
anodic stripping voltammetry?
(48) How can a chromatographic peak for a given sample be identified? How can
one in an electropherogram?
(49) What advantages does the use of an internal standard in Instrumental
Qualitative Analysis have?
(50) Why has Qualitative Analysis been revitalized in recent times?
241
(27) What are the greatest shortcomings of Classical Qualitative Analysis?
(28) Give some examples of method calibration in Instrumental Qualitative
Analysis and establish differences from the equipment calibration implicit
in each.
(29) Compare the role of separations in Classical and Instrumental Qualitative
Analysis, with emphasis on the more common choices in each.
(30) What advantages does Instrumental Qualitative Analysis have over Classical Qualitative Analysis?
(31) Give some examples of each type of reagent used in Classical Qualitative
Analysis.
(32) Discuss the requirements a substance must meet for use as a group separation reagent in Classical Qualitative Analysis.
(33) Distinguish, through examples, the most usual types of reactions used to
identify inorganic and organic species in Classical Qualitative Analysis.
(34) What advantages and disadvantages does the use of immunoreagents in
Qualitative Analysis have?
(35) In what way are Group 2 and Group 3 instruments different as regards
reliability in the qualitative information they provide?
(36) Why do separation techniques boost the reliability of identifications in
Instrumental Qualitative Analysis?
(37) What is a mixed analytical scheme?
(38) Why is fluorimetry a more advantageous choice than photometry for
identification purposes?
(39) Why is IR spectroscopy superior as an identification technique in relation
to other molecular spectroscopies such as photometry and fluorimetry?
(40) In what way is an electropherogram (Fig. 5.18) different from a voltammogram (Fig. 5.16) and a chromatogram (Fig. 5.17)?
(41) Why must the use of a blank be considered in Classical and Instrumental
Qualitative Analysis?
(42) What problems does it pose to use retention times as such for identification
in electrophoretic and chromatographic systems?
(43) Distinguish "internal standard" and "analyte standard" in Instrumental
Qualitative Analysis.
(44) In what way can a computer system be used for identification purposes?
(45) Give some examples of identification ~y use of instrumental systems.
(46) Why do instruments differ in identification power?
(47) How could the presence of copper traces in a wine be confirmed using
anodic stripping voltammetry?
(48) How can a chromatographic peak for a given sample be identified? How can
one in an electropherogram?
(49) What advantages does the use of an internal standard in Instrumental
Qualitative Analysis have?
(50) Why has Qualitative Analysis been revitalized in recent times?