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7/24/2019 BAGASA INGGRIS TUGAS TUGAS TUGAS TUGAS TUGAS.docx

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By :

Ni Kadek Ayu SawitriDIV B Analis Kesehatan

P0713411077

201



The Use of Laboratory Glassware1. Volumetric pipettes

A !"lu#etri$ %i%ettes is a %ie$e "& la'"rat"ry (lassware that)s usedt" take* t" trans&er* and t" #easure the a$$urate !"lu#e "&$he#i$al* 'i"l"(i$al*"r #edi$al s"luti"n +uantitati!ely* e,a$tly ri(htt" the !"lu#e that listed "n the %i%ettes-

2. Measuring pipettes

A #easurin( %i%ettes is a %ie$e "& la'"rat"ry (lassware that)s used

t" take* t" trans&er* and t" #easure the a$$urate !"lu#e "&

$he#i$al* 'i"l"(i$al* "r #edi$al s"luti"n* +ualitati!ely* 'ut the

!"lu#e "& the $he#y$al s"luti"n is n"t e,a$tly ri(ht t" the !"lu#e

that listed "n the %i%ettes-3. Micropipettes

A #i$r"%i%ettes is a %ie$e "& la'"rat"ry (lassware that)s used t"

trans&er s#all !"lu#e "& $he#i$al* 'i"l"(i$al*"r #edi$al s"luti"n

a$$urately-4. urettes

A 'urettes is a %ie$e "& la'"rat"ry (lassware that)s used in

analyti$al $he#istry &"r the dis%ensin( "& !aria'el* #easurin(

!"lu#e* and &"r titrati"n-

!. "rlenmeyer #las$



.rlen#eyer /ask is a %ie$e "& la'"rat"ry (lassware that)s used &"r

#easurin(* #i,in(* and st"rin( $he#i$al-%. #lat bottome& roun& 'as$s

A &lat '"tt"#ed r"und /asks is a %ie$e "& la'"rat"ry (lassware that)s

used &"r st"rin( s"luti"n and $arryin( "ut rea$ti"n at r""#

te#%erature* 'ut with a /at '"tt"# that all"ws it t" stay in the

ta'le-(. )oun& bottome& 'as$s

A r"und '"tt"#ed /asks is a %ie$e "& la'"rat"ry (lassware that)s

used &"r rea$ti"n* distilati"ns* and $"lle$ti"n-*. Volumetric 'as$s

A !"lu#etri$ /ask is a %ie$e "& la'"rat"ry (lassware that)s used &"r

#easurin( !"lu#e a$$urately in the %re%arati"n "& s"luti"n &"r

$he#istry rea$ti"n-+. ea$ers



A 'eakers (lass is a %ie$e "& la'"rat"ry (lassware that)s used &"r

stirrin(*#i,in(* and heatin( $he#i$al* 'i"l"(i$al* "r #edi$al

s"luti"n-1,. Measuring cylin&er

A easurin( $ylinder is a %ie$e "& la'"rat"ry (lassware that)s used

t" #easure the !"lu#e "& a s"luti"n a$$urately-11. Test tube

A testtu'e is a %ie$e "& la'"rat"ry (lassware that)s used t" h"ld*

#i,* "r heat s#all +uantities "& $he#i$al* 'i"l"(i$al* "r #edi$als"luti"n &"r assays and e!en (r"win( #i$r""r(anis#-

12. )eagent bottlesA rea(ent '"ttles is a %ie$e "& la'"rat"ry (lassware that)s used t"

st"re rea(ent- ide ne$k rea(ent '"ttles is used t" st"re s"lid

sa#%les and thin ne$k rea(ent '"ttles is used t" st"re li+uid

sa#%le-13. -etri&ishes

A %etridishes is a %ie$e "& la'"rat"ry (lassware that)s used &"r

$ulturin( and is"latin( 'a$teria and #i$r""r(anis#-

14. #ilter #unnels

A lter &unnels is a %ie$e "& la'"rat"ry (lassware that)s used &"r

se%aratin( s"lids &r"# li+uids !ia thela'"rat"ry %r"$ess "& lterin(-

1!. eparating funnels

A se%aratin( &unnels is a %ie$e "& la'"rat"ry (lassware that)s used

t" se%arate li+uids whi$h d" n"t diss"l!e in "ne an"ther* and thus

&"r# layers-1%. -estle an& mortar



A %estle and #"rtar is a %ie$e "& la'"rat"ry (lassware that)s used t"

$rush and 'lend sunstan$e t"(ether it is used when $"ndu$tin(

$he#i$al testand e,%eri#ents-

eneral leanin( and are "& 5a'"rat"ry lasswares

a. Laboratory Glassware /leaning ash the la'"rat"ry (lassware 'e&"re it is used &"r the rst

ti#e- lassware is $leaned i##ediately a&ter use in l"w

te#%erature then the %r"'le#s ass"$iated with dirt$an 'e

$"ntr"lled t" a (reat e,tent- I& deter(ent is used &"r la'"rat"ry (lassware washin(* it

sh"uld 'e the "ne that is s%e$ially desi(ned &"r la'"rat"ry

(lassware $leanin(- 6insin( 'y the a%%r"%riate s"l!ent and a $"u%le "& rinses with

distilled water- 6e#"!e (rease 'y '"illin( the la'"rat"ry (lassware in a e!ery

weak s"luti"n "& s"diu# $ar'"nate- Str"n( alkalis are n"t %re&erred and sh"uld 'e a!"ided-

"r re#"!al sili$"ne (rease s"akin( the (lassware in

de$hydr"na%hthalene &"r at least 2 h"urs- lassware that has $"#e $"nta$t with in&e$ti"us su'stan$e

sh"uld 'e treated in a$$"rdan$e with the $urrent (uidelines- It is inad!isa'le t" dry (lassware with a %a%er t"wel "r &"r$ed

air sin$e this $an intr"du$e 'er that $an $"nta#inate the

s"luti"n- I& (lassware is t" 'e used i##ediately a&ter washin( and #ust

'e dry* rinse it 283 ti#es with a$et"ne- D" n"t heat (lassware t" te#%erature #"re than 190" -

D" n"t %la$e hands inside the (lassware while wearin( any

ewelry* this will s$"re the inside "& (lassware-b. /are of Laboratory Glasswares

he$k the (lassware $are&ully 'e&"re use it* #ake sure the(lassware in a (""d $"nditi"n-

D" n"t use the (lassware i& it)s $ra$k* 'r"ken* "r s$rat$h-

Bad $"nditi"n will #ake the la'"rat"ry (lassware sus$e%ti'le

t" da#a(e- ;hr"w away "r se%arate the 'r"ken (lassware &r"# the

(lassware that still in (""d $"nditi"n- <se a (ar'a(e that s%e$ially desi(ned &"r &ra(ile-

<se a (ar'a(e that resistent t" sta' and (i!e it a la'el-

Be $are&ull when $arryin( hea!y "r 'i( (lassware* h"ld it tidely

"n the side and '"tt"#-



D" n"t %ut in the ru''er lid t" dee% "n erlen#eyer /ask* test

tu'e* et$- Put in the ru''er lid $are&ully and use a %r"%er si=e a$$"rdin(

the (lassware- Always use stirrin( sti$k when #i,in( $he#i$al li+uids with

dull ti%- D" n"t use the $he#i$al su$h as /"uride a$id and %h"s%at

a$id in hi(h te#%erature* it $an $ause k"r"si&- D" n"t #i, sul&ate a$id with water in the $ylinder* the rea$ti"n

$an $ause da#a(e t" the $ylinder- a,i#u# te#%erature &"r heatin( is 00"-

D" n"t heat the 'r"ken "r s$rat$h (lassware-

>eat the (lassware sl"wly* and ste% 'y ste% t" a!"id

ther#alsh"$k-

""l the (lassware sl"wly and a!"id &r"# $""l air-

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