irine gociriZe biosamedicino inJineria

sadac % T - gatarebis procentia. a - mudmivia yvela calkeuli
nivTierebisaTvis. kiuveta ki aris konstruirebuli ise, rom L iyos - rac
SeiZleba mudmivi. Sesabamisad P -s gazrda unda gamoxatavdes nimuSSi
STanTqmuli nivTierebis koncentraciis cvlilebas.
Ggamtarobis procenti xSirad warmoadgens gazomvis rezultatsac.
Mmagram radgan gamtarobis procentis warmodgena xdeba logariTmiT,
miRebulia ufro mosaxerxebeli formula optikuri STanTqmis sididis
saxiT. Ooptikuri STanTqma A ganisazRvreba rogorc lg( P0
/ P)
ase rom,
A = lg( P0
/ P)
= lg( 100 / % T ) = 2 − lg(% T ) (6.3)
aRsaniSnavia rom Sefardeba.
A = aLC
(6.4)
rogorc ukve avRniSneT, speqtrometri mowyobilia ise rom
SeinarCunos ‘’ a ’’ da ‘’L L ’’ rac SeiZleba mudmivad, ise rom TiToeul
konkretul SemTxvevaSi A A damoukidebeli iyos C − gan. nivTierebis
ucnobi koeficienti SesaZloa ganvsazRvroT Semdegnairad, jer davadgenT
As
-s STanTqmis koeficients standartul nimuSebisaTvis, romelic Seicavs
analizisTvis mocemul nimuSis Cs
cnobil koncentracias, Semdeg
davadgenT am nimuSis STanTqmas Au
da bolos analizisTvis mocemul
koncentracias C u davadgenT formuliT
C u = Cs
( Au
/ As
) (6.5)
Tu Sefardeba sruldeba, pacientis sinjSi saanalizo nivTierebis
koncentraciis SesaZlo mniSvnelobebis mTels diapazonSi, es niSnavs rom
gazomva eqvemdebareba beris kanons. Mmagram es Sefardeba SesaZlebelia ar
moxdes ori mizeziT: gamxsnelis optikuri zemoqmedebis Sedegad da jibis
kedlebidan anareklis gamo. aseT SemTxvevaSi aucilebelia gavaanalizoT
nimuSebiს ufro meti raodenobebi, romelSic cnobilia gasaanalizebeli
nivTierebis koncentraciis mniSvnelobebi, romelic gadafaravs CvenTvis
saintereso koncentraciebis diapazons.
sinaTlis raodenoba, romelsac STanTqavs nivTiereba ZiriTadad
damokidebulia talRis sigrZeze. sixSire, romelsac atarebs talRovani
seleqtori amoirCeva ise, rom simetriulad gadafaros STanTqmis piki,
magram arsebobs mTeli rigi gasaTvaliswinebeli faqtorebisa. magaliTad
Tu STanTqma didia ( A > 1.
0 ) an mniSvnelovnad mcirea ( A < 0.
11),
maSin
gazomvis Secdomebi fotometruli sistemebisac didia. rodesac STanTqma
didia SegviZlia nimuSi gavazavoT, magram amas sWirdeba dro da SesaZloa
migviyvanos Secdomamde. sigrZe romelic Seesabameba STanTqmis piks unda
imyofebodes speqtrometris muSa diapazonis sazRvrebSi.
fotometruli sistema Seicavs deteqtorebs romlebic zomavs kiuvetis
SigTavsSi gamavali sinaTlis nakadis simZlavres, deteqtorebis mier
generirebuli dabali denebis gamaZlierebel wredebs da xelsawyos
operatorisaTvis gazomvis Sedegebis wardgenis mowyobilobebs.
deteqtorebad gamoiyeneba fotoelementebi Camketi feniT, fotoeleqtronuli
mamravlebi da foto-rezistorebi. Zveli konstruqciebi
garkveul problemebs qmnidnen, magram Tanamedrove cifrulma
mowyobilobebma umeteswilad moxsna es problemebi. igi saSualebas
gvaZlevs zustad davadginoT Sefardeba; sinaTlis nakadis simZlavresa da
optikur STanTqmas Soris.
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