ICP-MS基本原理 课件.pptx

陳麗真JenniferChen

InorganicProductsSpecialistEmail:Jennifer.Chen@

ICP-MS基本原理

InductivelyCoupledPlasmaMassSpectrometry

cananalyzealmostallelementsintheperiodictableatconcentrationof

1ppm=1mg/L=1μg/mL=10-6g/mL

1ppb=1μg/L=1ng/mL=10-9g/mL

1ppt=1ng/L=1pg/mL=10-12g/mL

1ppq=1pg/L=1fg/mL=10-15g/mL

Othersimilartechniques:

AtomicAbsorptionSpectroscopy(AAS)

InductivelyCoupledPlasmaOpticalEmissionSpectroscopy(ICP-OES)

WhatistheICP-MS

HeAtomicnumber=2

Atomicweight=4.002602g

Electroncloud

丽丽

丽丽

ProtonNeutron

1,840electrons

Atom

-

-

-

Electron

Nucleus

Neutron

Proton

Proton

-

-

-

-

-

Isotopes

Abundance(%)

Protons

Neutrons

Electrons

54Fe

5.845

26

28

26

56Fe

91.754

26

30

26

57Fe

2.119

26

31

26

58Fe

0.282

26

32

26

58Ni

68.0769

28

30

28

60Ni

26.2231

28

32

28

61Ni

1.1399

28

33

28

62Ni

3.6345

28

34

28

64Ni

0.9256

28

36

28

NiAtomicnumber=28

Atomicweight=58.6934g

FeAtomicnumber=26

Atomicweight=55.845g

IsotopeandIsobar

Pbisotopes

1011

12

9

5

3

2

1

10

10-6

10

10

10-9

190210230250270290310350

Wavelength(nm)

Photocurrent(Amperes)

Pb100mg/L

-8

78

4

ICP-MSSpectrum–1ppbPb

Pbisotopes

1A

2A

3B

4B

5B

6B

7B

8B

8B

8B

1B

2B

3A

4A

5A

6A

7A

8A

H

InductivelyCoupledPlasmaMass

Spectrometry

He

Li

Be

B

C

N

O

F

Ne

Na

Mg

Al

Si

P

S

Cl

Ar

K

Ca

Sc

Ti

V

Cr

Mn

Fe

Co

Ni

Cu

Zn

Ga

Ge

As

Se

Br

Kr

Rb

Sr

Y

Zr

Nb

Mo

Tc

Ru

Rh

Pd

Ag

Cd

In

Sn

Sb

Te

I

Xe

Cs

Ba

La

Hf

Ta

W

Re

Os

Ir

Pt

Au

Hg

Tl

Pb

Bi

Po

At

Rn

Fr

Ra

Ac

Othersimilartechniques:

AtomicAbsorptionSpectroscopy(AAS)

InductivelyCoupledPlasmaOpticalEmissionSpectroscopy(ICP-OES)

Ce

Pr

Nd

Pm

Sm

Eu

Gd

Tb

Dy

Ho

Er

Tm

Yb

Lu

Th

Pa

U

Np

Pu

Am

Cm

Bk

Cf

Es

Fm

Md

No

Lr

ElementsAnalyzedbyICP-MS

-D.L.ofELANDRC-

Lanthanoid

Actinoid

0.1–1ppb

1–100ppt

1ppt

D.L.range

ELANProductHistory

●EL