COMPRE TRACE ELEMENTTS

COMPRE TRACE ELEMENTTS
63問 • 2年前
  • Chasny Halasan
  • 通報

    問題一覧

  • 1

    widely used because of its sensitivity, wide range of elements covered, and relative freedom from interferences

    ICP-MS

  • 2

    sample is atomized at a sufficient temperature to produce an excited-state species

    SOURCE

  • 3

    (wavelength selecting device) - spectral dispersion of the radiation and separation of the analytical line from other radiation.

    MONOCHROMATOR

  • 4

    permitting measurement of radiation intensity

    DETECTOR

  • 5

    [liquid sample, containing element(s) of interest, is converted into an aerosol and delivered into the source, where it receives energy sufficient to emit radiation

    AES

  • 6

    capable of much higher temperature compared to AES]

    ICP-AES

  • 7

    analytical procedure for the quantitative determination of elements through the absorption of optical radiation by free atoms in the gas phase

    AAS

  • 8

    ideal sources for AAS

    HALLOW CATHODE LAMP

  • 9

    for volatile elements sources for AAS

    ELECTRODELESS DISCHARGE LAMP

  • 10

    Also called flameless or electrothermal AAS

    GFAAS

  • 11

    Measures copper, iron, and zinc

    FAAS

  • 12

    most commonly used atomizer, made of high-purity polycrystalline electrographite and coated with pyrolytic graphite [can be heated to a high temperature by an electrical current]

    GRAPHITE TUBE

  • 13

    measures the mass-to-charge ratio (molecular mass divided by ionic charge [m/z]) of selected analyte ions).

    ICP-MS

  • 14

    n ICP refers to an ionized gas (almost always argon), in which a certain proportion of electrons are free

    PLASMA

  • 15

    generates high temperatures and serves several purposes

    ARGON

  • 16

    predominant natural sources = volcanoes and weathering of minerals

    ARSENIC

  • 17

    containing foods, water and beverages, or inhalation of contaminated air o commonly found in fish and seafood = nontoxic

    ARSENIC

  • 18

    main arsenic species in seafood common cause for increased total arsenic concentration in urine

    ARSENOBETAINE

  • 19

    most common poisons in human history

    ARSENIC TRIOXIDE

  • 20

    Soft, bluish-white metal; easily cut with a knife

    CADMIUM

  • 21

    principal industrial uses manufacture of pigments and batteries, as well as in the metal plating and plastics industries

    CADMIUM

  • 22

    THIS TRACE ELEMENTS INCREASES IN SMOKING

    CADMIUM

  • 23

    Soft, bluish white, highly malleable, and ductile

    LEAD

  • 24

    poor conductor of electricity and heat, resistant to corrosion

    LEAD

  • 25

    heavy metal found in the environment • used in production of storage batteries, ammunition, solder, and foils

    LEAD

  • 26

    Half life of lead in whole blood

    2 to 3 weeks

  • 27

    also called quicksilver - liquid at room temperature and pressure [same w/ Bromine]

    MERCURY

  • 28

    refers to various forms of mercury bound to a carbon atom, with mercury usually in the +2 oxidation state

    ORGANIC MERCURY

  • 29

    released to atmosphere = natural out gassing of rock and as a fungicide; incorporated into dental amalgams; also used in electrical switches

    MERCURY

  • 30

    makes rubies red and emeralds green

    CHROMIUM

  • 31

    used in the manufacture of stainless steel

    CHROMIUM

  • 32

    maintaining normal metabolism of glucose, fat, and cholesterol

    CRIII

  • 33

    binds the newly absorbed chromium

    TRANSFERRIN

  • 34

    acceptor and transporter of chromium if the transferrin sites are saturated

    ALBUMIN

  • 35

    A TYPE OF CR THAT CAN CAUSE severe dermatitis and skin ulcers

    CRV

  • 36

    relatively soft yet tough metal with excellent electrical and heat conducting properties

    COPPER

  • 37

    forms alloys with zinc (brass), tin (bronze), and nickel (cupronickel, widely used in coins)

    COPPER

  • 38

    best known yet the least understood copper protein; alpha2-globulin, and levels are influenced by hormones

    CERULOPLASMIN

  • 39

    extreme form of copper deficiency ▪ characterized by peculiar hair called kinky or steely, and retardation of growth ▪ symptoms usually appear at the age of 3 months and death usually occurs in 5-year-olds

    MENKE'S DISEASE

  • 40

    genetically determined copper accumulation disease

    WILSON'S DISEASE

  • 41

    (green - brown discoloration) in the cornea

    KAYSER-FLEISCHER RING

  • 42

    Fourth most abundant element in the earth’s crust soft, lustrous, ferromagnetic metal

    IRON

  • 43

    controls the release of iron from cells

    FERROPORTIN

  • 44

    modulate the release of iron from cells

    HEPCIDIN

  • 45

    iron overload states whether or not tissue damage is present

    HEMOCHROMATOSIS

  • 46

    condition of iron overload as demonstrated by an increased serum iron and total iron binding capacity (TIBC) or transferrin, but without demonstrable tissue damage

    HEMOSIDEROSIS

  • 47

    used in the production of ferromanganese used as a scavenger during steel production

    MANGANESE

  • 48

    used in the production of ferromanganese used as a scavenger during steel production

    MANGANESE

  • 49

    constituent of metalloenzymes and as an enzyme activator

    MANGANESE

  • 50

    (manganese madness) = Chilean manganese miners who have experienced acute manganese aerosol intoxication

    LOCURA MANGANICA

  • 51

    resembles Parkinson’s disease with rigidity, tremors, and masklike faces

    CHRONIC FORM

  • 52

    silvery white metal that is very hard; used for the production of alloys

    MOLYBDENUM

  • 53

    occurs as molybdenite, wulfenite, and powelite

    MOLYBDENUM

  • 54

    metalloid with many properties similar to those of sulfur

    SELENIUM

  • 55

    endemic cardiomyopathy in certain areas in China [affects mostly children and women in childbearing age]

    KESHAN DISEASE

  • 56

    endemic osteoarthritis linked to low selenium status in northern China, North Korea, and eastern Siberia [occurs during adolescent and preadolescent years]

    KASHIN-BECK DISEASE

  • 57

    endemic osteoarthritis linked to low selenium status in northern China, North Korea, and eastern Siberia [occurs during adolescent and preadolescent years]

    SELENIUM SULFIDE

  • 58

    bluish white, lustrous metal; stable in dry air [becomes covered with a white coating when exposed to moisture]

    ZINC

  • 59

    fourth most used metal

    ZINC

  • 60

    used in a production of alloys, especially brass (with copper)

    ZINC

  • 61

    influence on the activity of more than 300 enzymes (synthesis and metabolism of DNA and RNA)

    ZINC

  • 62

    (zinc malabsorption) = first develop characteristic facial and diaper rash

    ACRODERMATITIS ENTEROPATHICA

  • 63

    exposure to ZnO fumes and dust

    ZINC FUME FEVER

  • BACTE-PART 1

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    問題一覧

  • 1

    widely used because of its sensitivity, wide range of elements covered, and relative freedom from interferences

    ICP-MS

  • 2

    sample is atomized at a sufficient temperature to produce an excited-state species

    SOURCE

  • 3

    (wavelength selecting device) - spectral dispersion of the radiation and separation of the analytical line from other radiation.

    MONOCHROMATOR

  • 4

    permitting measurement of radiation intensity

    DETECTOR

  • 5

    [liquid sample, containing element(s) of interest, is converted into an aerosol and delivered into the source, where it receives energy sufficient to emit radiation

    AES

  • 6

    capable of much higher temperature compared to AES]

    ICP-AES

  • 7

    analytical procedure for the quantitative determination of elements through the absorption of optical radiation by free atoms in the gas phase

    AAS

  • 8

    ideal sources for AAS

    HALLOW CATHODE LAMP

  • 9

    for volatile elements sources for AAS

    ELECTRODELESS DISCHARGE LAMP

  • 10

    Also called flameless or electrothermal AAS

    GFAAS

  • 11

    Measures copper, iron, and zinc

    FAAS

  • 12

    most commonly used atomizer, made of high-purity polycrystalline electrographite and coated with pyrolytic graphite [can be heated to a high temperature by an electrical current]

    GRAPHITE TUBE

  • 13

    measures the mass-to-charge ratio (molecular mass divided by ionic charge [m/z]) of selected analyte ions).

    ICP-MS

  • 14

    n ICP refers to an ionized gas (almost always argon), in which a certain proportion of electrons are free

    PLASMA

  • 15

    generates high temperatures and serves several purposes

    ARGON

  • 16

    predominant natural sources = volcanoes and weathering of minerals

    ARSENIC

  • 17

    containing foods, water and beverages, or inhalation of contaminated air o commonly found in fish and seafood = nontoxic

    ARSENIC

  • 18

    main arsenic species in seafood common cause for increased total arsenic concentration in urine

    ARSENOBETAINE

  • 19

    most common poisons in human history

    ARSENIC TRIOXIDE

  • 20

    Soft, bluish-white metal; easily cut with a knife

    CADMIUM

  • 21

    principal industrial uses manufacture of pigments and batteries, as well as in the metal plating and plastics industries

    CADMIUM

  • 22

    THIS TRACE ELEMENTS INCREASES IN SMOKING

    CADMIUM

  • 23

    Soft, bluish white, highly malleable, and ductile

    LEAD

  • 24

    poor conductor of electricity and heat, resistant to corrosion

    LEAD

  • 25

    heavy metal found in the environment • used in production of storage batteries, ammunition, solder, and foils

    LEAD

  • 26

    Half life of lead in whole blood

    2 to 3 weeks

  • 27

    also called quicksilver - liquid at room temperature and pressure [same w/ Bromine]

    MERCURY

  • 28

    refers to various forms of mercury bound to a carbon atom, with mercury usually in the +2 oxidation state

    ORGANIC MERCURY

  • 29

    released to atmosphere = natural out gassing of rock and as a fungicide; incorporated into dental amalgams; also used in electrical switches

    MERCURY

  • 30

    makes rubies red and emeralds green

    CHROMIUM

  • 31

    used in the manufacture of stainless steel

    CHROMIUM

  • 32

    maintaining normal metabolism of glucose, fat, and cholesterol

    CRIII

  • 33

    binds the newly absorbed chromium

    TRANSFERRIN

  • 34

    acceptor and transporter of chromium if the transferrin sites are saturated

    ALBUMIN

  • 35

    A TYPE OF CR THAT CAN CAUSE severe dermatitis and skin ulcers

    CRV

  • 36

    relatively soft yet tough metal with excellent electrical and heat conducting properties

    COPPER

  • 37

    forms alloys with zinc (brass), tin (bronze), and nickel (cupronickel, widely used in coins)

    COPPER

  • 38

    best known yet the least understood copper protein; alpha2-globulin, and levels are influenced by hormones

    CERULOPLASMIN

  • 39

    extreme form of copper deficiency ▪ characterized by peculiar hair called kinky or steely, and retardation of growth ▪ symptoms usually appear at the age of 3 months and death usually occurs in 5-year-olds

    MENKE'S DISEASE

  • 40

    genetically determined copper accumulation disease

    WILSON'S DISEASE

  • 41

    (green - brown discoloration) in the cornea

    KAYSER-FLEISCHER RING

  • 42

    Fourth most abundant element in the earth’s crust soft, lustrous, ferromagnetic metal

    IRON

  • 43

    controls the release of iron from cells

    FERROPORTIN

  • 44

    modulate the release of iron from cells

    HEPCIDIN

  • 45

    iron overload states whether or not tissue damage is present

    HEMOCHROMATOSIS

  • 46

    condition of iron overload as demonstrated by an increased serum iron and total iron binding capacity (TIBC) or transferrin, but without demonstrable tissue damage

    HEMOSIDEROSIS

  • 47

    used in the production of ferromanganese used as a scavenger during steel production

    MANGANESE

  • 48

    used in the production of ferromanganese used as a scavenger during steel production

    MANGANESE

  • 49

    constituent of metalloenzymes and as an enzyme activator

    MANGANESE

  • 50

    (manganese madness) = Chilean manganese miners who have experienced acute manganese aerosol intoxication

    LOCURA MANGANICA

  • 51

    resembles Parkinson’s disease with rigidity, tremors, and masklike faces

    CHRONIC FORM

  • 52

    silvery white metal that is very hard; used for the production of alloys

    MOLYBDENUM

  • 53

    occurs as molybdenite, wulfenite, and powelite

    MOLYBDENUM

  • 54

    metalloid with many properties similar to those of sulfur

    SELENIUM

  • 55

    endemic cardiomyopathy in certain areas in China [affects mostly children and women in childbearing age]

    KESHAN DISEASE

  • 56

    endemic osteoarthritis linked to low selenium status in northern China, North Korea, and eastern Siberia [occurs during adolescent and preadolescent years]

    KASHIN-BECK DISEASE

  • 57

    endemic osteoarthritis linked to low selenium status in northern China, North Korea, and eastern Siberia [occurs during adolescent and preadolescent years]

    SELENIUM SULFIDE

  • 58

    bluish white, lustrous metal; stable in dry air [becomes covered with a white coating when exposed to moisture]

    ZINC

  • 59

    fourth most used metal

    ZINC

  • 60

    used in a production of alloys, especially brass (with copper)

    ZINC

  • 61

    influence on the activity of more than 300 enzymes (synthesis and metabolism of DNA and RNA)

    ZINC

  • 62

    (zinc malabsorption) = first develop characteristic facial and diaper rash

    ACRODERMATITIS ENTEROPATHICA

  • 63

    exposure to ZnO fumes and dust

    ZINC FUME FEVER