MODULE 18

Question 1

is becoming more widely used in the
analysis of trace metals because of its
sensitivity

Answer 1

INDUCTIVELY COUPLED PLASMA -
MASS SPECTROMETRY

Question 2

it is an elemental analysis technology
capable of detecting most of the periodic table of elements at milligram to nanogram levels pet liter.

Answer 2

INDUCTIVELY COUPLED PLASMA -
MASS SPECTROMETRY

Question 3

it is used in a variety of industries
including, but not limited to,
environmental monitoring, geochemical
analysis, metallurgy, pharmaceutical
analysis, and clinical research.

Answer 3

INDUCTIVELY COUPLED PLASMA -
MASS SPECTROMETRY

Question 4

is a type of mass
spectrometry which is capable of detecting metals at very low concentrations.

Answer 4

INDUCTIVELY COUPLED PLASMA -
MASS SPECTROMETRY

Question 5

ICP-MS can detect about _______ elements with ________ and ______ with liquid samples.

Answer 5

80 elements with
ppb and ppt levels

Question 6

combines a high temperature ICP
source with a mass spectrometer.

Answer 6

INDUCTIVELY COUPLED PLASMA -
MASS SPECTROMETRY

Question 7

is a plasma that is ionized by
inductively heating the gas with an
electromagnetic coil.

Answer 7

INDUCTIVELY COUPLED PLASMA

Question 8

in ICP-MS Argon (Ar) gas is electrically heated to a high temperature __________ plasma.

Answer 8

(>6000 K)

Question 9

ICP-MS designed for the

Answer 9

liquid samples

Question 10

consists of a triple tube w/ a
concentric circle made of quartz.

Answer 10

ICP torch

Question 11

Lighter ions are pushed
out of the quadrupole

Answer 11

Positive Poles

Question 12

Lighter ions are held in
the quadrupole

Answer 12

Negative Poles

Question 13

Ions are amplified through electron
multipliers.

Answer 13

Ion Detector

Question 14

three basic parts of ICP - MS

Answer 14

Sample Preparation
ICP torch
Detection System

Question 15

the ICP - MS measure the ____________ of an element

Answer 15

isotopic ratio

Question 16

2 presence of elements can interfere to the results of another

Answer 16

Polyatomic Interference

Question 17

overlapping mass with the isotope of another element.

Answer 17

Isobaric Interference

Question 18

before entering ms, the plasma passes two orifices, skimmer, and the lons

Answer 18

Matrix Interference

Question 19

Bulk analysis, Polymer degradation and uptake inorganic species as a function of the sample depth

Answer 19

combination of LA-ICP-MS/LIBS

Question 20

Method that uses a flame to cause an
atomized analyte to emit its characteristic emission spectrum.

Answer 20

Flame Emission Spectrometry

Question 21

It closely resembles other techniques of
optical emission spectrometry in principle and instrumentation.

Answer 21

Flame Emission Spectrometry

Question 22

Useful technique for the determination of volatile elements with low excitation
energies such as the __________ and ____________.

Answer 22

alkali and alkaline
earth metals.

Question 23

in FLAME ES, when metal ions are heated, they emit ___________ . And these light are measured by
their ____________.

Answer 23

light
wavelengths

Question 24

detect the individual wavelength
that are emitted

Answer 24

Spectroscope

Question 25

Intensity of emission is ___________ to
changes in flame temperature.

Answer 25

very sensitive

Question 26

It also can be used to identify and
quantify a variety of elements that are
important to the studies on enzymes and metalloproteins.

Answer 26

Flame Emission Spectrometry

Question 27

The most notable applications are the
determinations of ___________________ in
body fluids and other biological samples
for clinical diagnosis.

Answer 27

Na, K, Ca and Mg

Question 28

important constituents of soils and fertilizers and the technique is therefore also useful for the analysis of agricultural materials.

Answer 28

B, Fe, Cu, Mn

Question 29

____________ complements atomic absorption spectrometry because it operates most effectively for elements which are easily ionized, whilst atomic absorption methods demand a minimum of ionization

Answer 29

Flame Emission Spectrometry