ANALYTIC TECHNIQUES AND INSTRUMENTATIONS

Question 1

4 basic areas in the analytic techniques and instrumentations

Answer 1

Spectrophotometry
Luminescence
Chromatography
Electroanalytic methods

Question 2

The sun gets its energy from the process of___

Answer 2

Nuclear fusion

Question 3

Electromagnetic radiation also known as

Answer 3

Radiant or radiation

Question 4

Particle of electromagnetic radiation is

Answer 4

Photon

Question 5

Change particle such as electron in order to move up and down

Answer 5

Electromagnetic waves

Question 6

Distance between 2 identical points on a consecutive waves

Answer 6

Wavelength

Question 7

Distance between origin and crest

Answer 7

Amplitude

Question 8

Number of waves that pass a point per unit time or per person

Answer 8

Frequency

Question 9

Wavelength x frequency

Answer 9

Speed

Question 10

Is a wave of alternating electric and magnetic fields

Answer 10

Light

Question 11

What are 2 categories of light

Answer 11

Visible
Invisible

Question 12

Infrared, microwaves, radio waves

Answer 12

Invisible

Question 13

ROYGBIV

Answer 13

Visible

Question 14

Called as transmitted light
One that our eyes can see

Answer 14

Reflected light

Question 15

Also called as polychromatic light
Composed of all visible colors

Answer 15

White light

Question 16

Produces only one color

Answer 16

Monochromatic

Question 17

350 to 400

Answer 17

Violet

Question 18

400 to 450

Answer 18

Indigo yellow

Question 19

450 to 500

Answer 19

Blue orage

Question 20

500 to 550

Answer 20

Green red

Question 21

600 to 650

Answer 21

Yellow to indigo

Question 22

650 to 600

Answer 22

Red to green

Question 23

Most common light source at visible light near uv and near ir

Answer 23

Incandescent tungsten/ tungsten iodide lamp or halogen quarts lamp

Question 24

Fluorometry

Answer 24

Mercury hydrogen lamp xenon arc

Question 25

AAS ( Alomic absorption spectrophotometry

Answer 25

Hallow cathode lamp

Question 26

@uv range continuous light emission down to 165nm

Answer 26

Deuterium

Question 27

Uses an electrical rod of rare earth element oxide

Answer 27

Merst glower

Question 28

Uses silicon carbide heated to 1200 degrees celsius

Answer 28

Globar

Question 29

Reduces stray light Prevents scattered light from entering the monochromator

Answer 29

Entrance slit

Question 30

Device that produces light specific wavelengths

Answer 30

Monochromatic light

Question 31

Range of wave length transmitted Efficiency and monochramator

Answer 31

Bandpass

Question 32

The concentration of a substance directly proportional to the amount of light absorbed and inversely proportional to the logarithm of the light transmitted

Answer 32

Beer lamberts law

Question 33

The higher the concentration, the higher the absorbed light

Answer 33

Directly proportional

Question 34

Whenever the concentration is high the transmitted light is lowbats vice versa

Answer 34

Inversely proportional

Question 35

Measurement of the light transmitted by a solution to determine the concentration of a light absorbing in the solution

Answer 35

Spectrophotometry

Question 36

Exeferr lamp Provide electromagnetic radiation Polychromatic light

Answer 36

Light source

Question 37

Wedge shaped piece of glass quarts or sodium chloride

Answer 37

Prism

Question 38

Aluminized surpa

Answer 38

Difraction grating

Question 39

Types of interference

Answer 39

Constructive and destructive interference

Question 40

Crest line up together from perfect fit puzzle in resulting to higher amplitude

Answer 40

Constructive interference

Question 41

Crest and through meet resulting in low amplitude

Answer 41

Destructive interference

Question 42

Exclusion of unwanted light from entering the monochromator

Answer 42

Entrance slit

Question 43

Allows only a narrow beam of spectrum to pass through the cuvette

Answer 43

Exit slit

Question 44

Analytical cell/ sample holder

Answer 44

Cuvette