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PJ1310 Science Of Medicines Yr1 > Spectroscopy > Flashcards

Spectroscopy Flashcards

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1
Q

What is spectroscopy

A

Absorption of uv vis light making e go from ground to excited

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2
Q

What do the different wavelengths show on spectroscopy

A

Types of bonds and transits of bonds

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3
Q

What is beer lamberts law

A

A=ebc
A = ecl

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4
Q

How is y=mx+c used

A

Determine conc of unknown from known solutions

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5
Q

What is transmittance

A

Ratio of em radiation exiting from sample to source

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6
Q

Define spectroscopy

A

Study of interaction of light with a substance to be analyser for its identification (qual) and amount (quant)

Absorption of em radiation + use of resulting absorption to study structural of organic molecules

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7
Q

Describe alkanes and what theyre used for

A

Single bonds
Fuel

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8
Q

Describe alkenes and what theyre used for

A

Double bond
Precursor to vitamin A

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9
Q

Describe alkynes and what theyre used for

A

Triple bond
Calchiamicin anti tumour

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10
Q

Describe alkyl halides and what theyre used for

A

4 functional groups with same properties
Mustard gas

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11
Q

Describe alcohols and what theyre used for

A

OH
Hydroxyl
Carbohydrates often water soluble

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12
Q

Describe ethers and what theyre used for

A

R-O-R

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13
Q

Describe amines and what theyre used for

A

Amino acids
NH2

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14
Q

Describe aldehydes and what theyre used for

A

H DOUBLE BOND O

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15
Q

Describe ketones and what theyre used for

A

O double bond

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16
Q

Describe carboxylic acid

A

COOH

17
Q

Describe esters

A

R. - COO - R

18
Q

Describe amides

A

C O NH2
Paracetamol

19
Q

Nitro group

A

NO2
Nitrazepam

20
Q

What components are used in UV/vis

A

Detector
Sample
Monochromator
Light

21
Q

What two lights are used in UV/Vis

A

Deuterium
Tungsten

22
Q

Describe spectroscopy

A

Absorption of uv/vis light by a molecule causing electron to go from ground to excited state

23
Q

What does T-100% mean

A

No absorption

24
Q

What does T-0% mean

A

Complete absorption

25
Q

What is the absolute definition of spectroscopy

A

Study of molecular structure & dynamics through absorption, emission + scattering of light

26
Q

What does low energy mean

A

High wavelength

27
Q

What is em radiation

A

Where both waves and particles called photons consist of regular electric and magnetic fluctuations

28
Q

What is beer lamberts law

A

A= ebc

29
Q

What is the relationship between absorbance and concentration

A

Directly proportional

30
Q

Limitation for beer lamberts law

A

Valid for low concs of analytes
Only monochromatic validation allowed

31
Q

What does the wavelength absorption show

A

Transitions that occur by correlating to types of bonds formed

32
Q

What is the region for use of UV/vis

A

200-800nm

33
Q

What is a chromophore

A

Anything that absorbs light

34
Q

Why do we need to have a chromophore

A

To absorb light

35
Q

Why is line shape of spectra peaky

A

Molecules always vibrate and rotate

36
Q

Pharmaceutical applications of UV light

A

Quantification of drugs
Find Pka values
Dissolution testing
Monitor reaction kinetics

37
Q

Absorption spectra

A

Bioanalytical method where signal intensity is directly proportional to conc

38
Q

Photoluminescence

A

Emissions following absorption of photon
Return from high to low energy

PJ1310 Science Of Medicines Yr1 (15 decks)

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