oxygen produced from
the hydrogen peroxide then reacts with the luminol dianion. The product of this reaction is very
unstable and immediately decomposes with the loss of nitrogen to produce 5-aminophthalic acid
with electrons in an excited state. As the excited state relaxes to the ground state, the excess
energy is emitted as blue light.
4. The detecting of hemoglob
In catalyst, oxygen produced from H202
With sodium hydroxide, luminol Dianion is formed
The oxygen reacts with luminol dianion
This product is very unstable, so decomposes to 5-aminophathalic acid
As the exited state, 5-aminophathalic acid relaxes to ground state
Excess energy is emitted as blue light
Alkaline luminol, H2O2 solution is used on detecting NO2
The presence o
need a catalyst to accelerate the process. The catalyst in this case is the iron in hemoglobin . If hemoglobin and the luminol mixture come in contact, the iron in the hemoglobin accelerates a reaction between the hydrogen peroxide and the luminol. In this oxidation reaction, the luminol loses nitrogen and hydrogen atoms and gains oxygen atoms, resulting in a compound called 3-aminophthalate.
Change of conductivity being
normal state and gas detecting in sno2 grain boundary
Amount of desorption and absorption of oxide and free electron
can control sensor sensitivity
Electrode and the electrolyte solution while maintaining a constant current from the direct oxidation and reduction when measuring current to detect the gas.
Cause ionization of the electrolyte solution, the
Ⅰ. 서론
Pulse Oximeter(PO)는 혈액내의 산소포화도를 측정하는 것으로써 이는 총 헤모글로빈의 농도에 대해 산소를 포함하고 있는 헤모글로빈 농도의 비율로서 정의되어지는데, 이러한 비관혈적인 방법은 혈액의 채취나 카테터의 삽입 없이 혈액내의 산소 포화도를 측정함으로써 환자에게 고통을 주지
1. 서론
환경 모니터링 방법은 화학적 분석방법, 생물학적 접근 방법으로 나눌 수 있다. 화학적 분석방법은 제한된 시료를 이용하여 독성물질의 수계 혹은 생체내 존재 여부, 존재량, 거동 등을 측정 할 수 있다. 그러나 이러한 화학분석 데이터는 독성물질의 위해성을 평가하는데 한계를 지니고 있
1916 First report on the immobilization of proteins: adsorption of invertase on activated charcoal.
1956 Invention of the first oxygen electrode [Leland Clark]
1962 First description of a biosensor: an amperometric enzyme electrode for glucose. [Leland Clark]
1969 First potentiometric biosensor: urease immobilized on an ammonia electrode to detect urea. [Guilbault and Montalvo]
1970 Inve
minutest details. We can see a doctor or take proper treatments in a timely manner. For instance, the device advises us to rest when it detects boosting white blood cells which fight against viruses. It is not limited only for ailment, but there are more uses for serious illness. Before we get a cancer, we can be reported as soon as we got a hump.
▪ Creating intangible remote-controller
oxygenating his blood in a series of deep rapid
breaths -- almost hyperventilating, almost alarming if
weve never seen this before.
His gaze is glued to the ocean floor. Clear clear water.
40 feet deep. And intensely blue.
Suddenly, he catches his breath and dives -- into the
blue.
??
UNDERWATER
JACQUES touches bottom. Clamps his legs around a rock to
hold himself down. Unhurried, thoroughly at h
detective...
...you neednt protect me
against molestation from young women...
...until I ask you.
Anyone could tell the girl meant no harm.
He aint no tec. Hes a gentleman.
Look at his boots.
How are all your people down at Selsey?
Who told you my people
come from Selsey?
Never mind, they do.
How do you come to be up so far east?
You were born in Lisson Grove.
What arm is there
in my leavin Lisso