DC detector problem...help me please...thanks DC detector problem...help me plea
ID: 545444 • Letter: D
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DC detector problem...help me please...thanks DC detector problem...help me please...thanks Which of the GC detector is the best for achieving (a) the lowest limit of detection, (b) widest lnear dynamic range for the following compounds (A-HI 1. CEO Carbon Hexane (E Tetrachloro bipheny Atrazine 2· Understand the nine detector characteristics for GC detectors as follows: A) What is sensitvity and how it is measured? B) What is universal response and what it means? Which GC detector give universal What is fast reponse? What is the main reason for obtaining broad peak in chromatogram (assuming that column was efficient) D) What is a linear range? At what point the detector becomes non-near? E) What type of detector are defined as good stability detector Fl What are three types of noises? G) What is drift? What are three main cuases of chromatographic drift? H What is background noise? What is the main source of background noise in ga chromatography? How this background nolse can be eliminated? What is meant by relilability of a detector? What is meant by ease of operation Gve examples of at least two characteristics which are complementary to each other? What is signal? What is noise? How signal-to-noise (S/N) ratio can be measured experimentally?Explanation / Answer
A) it contains aromatic ring: So we can use thermal conducitivity, mass spectro and photoionization
B) Carbon monoxide: we can use thermal conducitivity, mass spectro and electron capture
C) hexane: carbon bearing hydrogen : so we can use hermal conducitivity, mass spectro and flame ionization
D) tetrachlorobiphenyl: thermal conducitivity, mass spectro and electron capture
E) Malathion: thermal conducitivity, mass spectro and nitrogen phosphorous spectro
F) Atrazine: nitrogen phosphorous spectro. or thermal conducitivity, mass spectro and electron capture
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