SCIENTIFIC ABSTRACT VECEREK, B. - VECHER, A.A.

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• Collection: Scientific Abstracts
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• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: September 1, 2001
• Sequence Number: 5
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

VE-C Fri E KD C 1 15-~
,y
~4o
ln3l~',tat of Chem-Intl'y' Fanu-'ty of
Charlea Urizverai 4,.,Y, Prague.

VECSREK, Bretislav; KOLAiUK, Ladislav
--', -
Automation in analytic chemistry. Pt. 5. Chem listy lj~tS no.8:
950-956 Ag 164.
1. Institute of Medical and Forensic Chemistry, Faculty of
General I-ledicirie,, Charles University, Pragu3 .

PREOLIK, Frattlaok, ins,; Friml-Uiak, Ina.
Apparatus for testing glaom jare. Pr= potravin 15 rrj,.12-
642-643 D '64,
1. jtAte Inspection of Food Product Quality, Prague ,

CZECIIOSWVAKIA
VECE51K, B. ; KRISTANOVA, D.
1. First Institute for ~1edical and Forensic Chemistryp Faculty of General
Medicineq 11arlove, Univ. (Lustav pro chemii lekarskou a soudni FVL KU),
Prague (for Vecerek?); 2. Dept. of Clinical Biochemistry (Oddeleni
klinicke biochemie), Fac. of Gen. Med., Karlova. Univ.,LFraguej (for
3. Central Laboratory, Faculty Hospital (Ustredni laborator INT), Prague
(for ?)
Brno, Vn,.-:trui lekarstvi, No 1, January 1967, pp 60-66
"Determination of lactic acid debydrogona'so isoonzymen by monotetrazolium
malt of SDMT LNitrobluemonotetrazoliumj."

VECERIKOVA I_V,--KESSLER, M.F.
Infrared spectra of the black coal from Ostrava-Karvina Basin.
Vysl ban vyzk 3:227-2" t64.
1. Institute of Mining, Czechoslovak Academy of Sciences,
Prague. -

COUN-IiL Ti
A .~l
ri Cipt Y
CAY?
'P, of
AjeS. JWT.. IM!Chlm. Mr), v
17
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c 1 0 1, 1 o I t;;o 1
'Ll rl.y 21-vin
t
56
o 3 2 el cor, l"
U ei '1, 0 -,.1; 12.j -

f-1.1st d3a--ho- L
ovol, 01"i arcl 11'r
e

KESSLER., Ferdinand, inz..$ We.; VECERIKOVAJP ~.. inz.
Examination of the possibility of determining crystaLlic S102
in ore and coal dust by infrared spectroscopy. Rudy 11 no.8:
274-279 Ag 163.
1. Hornicky uBtavp Ceskoslovenska akademie ved, Praha.

P
ncutr-ibie the
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t'66 '216
'!ovt-t.~ uf I W
r'~Ilwvirw Alica :tfal glaphit-1 rf~""Ll a Loiww"IL'of O~i
in IJUl[AtLIriC IIC:91, PLII'L 01' Lit,) irwi -,vith 6,:AiijITi
bicnTbonuti) in t.,I.i ylrr~~(,nj- 01,' ~jrrm
tll(, romaining irija by alpha-uitrv~u Li:tti-itapht~A. A;umini'lm
itti detarmin-NI ) t Okto,irtft, prQ,:ipftat~-d from tijo

Tll" 1:~ 1 1:3 111,,, .3
-ho. in th
b~ -ur u Cr
mium, but o!oycd if tho =4 .1-11
(,xCeed u:lity-

,The trroa-v systerlis
als1fate k Vvl~kt~ allot jail S
MV-1 Chr,-nLi,ly 19, -I,iu~ -,o(jq55j;-
The wilary phx,i ~ij)jjj. (11,tyrollIS ali;1W -mil "AP weiii
Obtaillcd Ily Ille Illethod. 'I'Lu ttwwwi, of (tie
conjugatt7d *'~O'dlctd. VISCO. .I
fllclri~llly. The vahics Of tficsL --ifisil. ate z1vc"
lit (1cpemIcno: em tlip (NII,),50, coikttw. lj~a,jw ifie pjq-
-f l1w sy"Icill 016w; TI, g4b.)VU Itit: iji.j,. 4,
cquiL ralige!i. Isilictik ow; life tli~rtli,
F. l3rdils i.

2326, Ewriment 's on the noo Of Do "D"y
IM
(Lau 3
for tontinuous recording, ~-Ykc-e-L- _Z:
914, 4 Rtleral V"
xh, Hum, J064, AW1% No.
graphic nietbod is Used to codtivi tho water vwont.
US of the reaction inixturu in the rearrangement of
Cyclobexanone oxitno to 0-caprolactam; the presence
of water retards the rearrangement and promota;
h drolys[3 of tbo lactarn to ii-aminocaproic, add.
. method is based wi the difference between the
9
potentials for the separation of 11, In an anhydrous
medium (0-0 to 04 V in the preRnca of 501) and:
in the prevnoo of water (1-2 V), By recording the
~STaph of tho current strength against time, the
water content of the r=ction mixture, =rL be
checkmi and tive vcquired. amount of fuming
sulphutir. acid can ht added. Th. T.Jarography is
CaTriedout ial cell at 70'C and the dropping.
mercury el=% replaced by a platiaum trik4o.
electiodo,

Z
Z, T-f
-Lgr;2)
(GhArniclee Ljst~v. Praha Vol 46, *i-To 11, Der.
3 C Lisi" of En~t 1j3, Voll..
,T,,i.r;,-- lo"Cl.

m ,

.......... ~:...
of I
Lill" "O' +11
lie
ty Of
tile 0', Vi It
nell'"fIll
-01C

V'~~ c6e'4- - -:/.,
VECERk, Z.; BIEBER, 13.
Detemination of larfTer cmantij~.jes of alu::inwa --',n cast -4-on rrithout us-in- ',he
, 0~-I~
mercur-j cathode. p. 206 (Sievarenstvi. Praha. Vol. 2, no. 7. July, ~'-/ w
SO: Monthly List of Baot European Accessions, (MIL), LC, Vol. It, ~10- 6-,
June 1955', Uncl.

-c-Z r" C,
-,oDOvrjiiin;tw:,ri oi crmid-ira Tilt- iliwwjum in rnst Iron with-
out t%r mprrzry r arlil (Icf
M-I
;z'A
Af
ill c:i-J irofi hvif. ;i et~,titj-,, QA')--'-:).!71 Al ia
100111), Ivit!f lf'01' fi!f~-r r"7
Ivith ivif Ifil, 'ro th..' oilmt~: zi!bl h'-ir:Zri7vt
fatcand rlilt-,nkc, by bz:atimi AtH s"10 N`d(CQ~ -ifiil drop.
turbHO-v lkn wlyi O.U-11 IR vi-
Al (douhh, thm i~fii~ iii: if CO. After
-r )IT tlig:
a fttv inia. lw,aiti~ na the v;i r?r ~,t~.mft lmtli, fdtt,
Alf0FQj, -wit'si -,nmr- and Cr(OW,- Di,~!jlvt! iliv
%vvshrd P131, In hot illy 11c1, itrA evap, tit, t0y to dryms,7,
nf 1110 -xith it ftnt. limpil n1
in
TIO, n.-Id 25 fill. of W~,, 11OAt, fuld mH i"IfIsOll istilil t1m
loll, 1711, 41f a
") ppt'
sffl!i. ~,t
I. ;.,
V but ncA A! or Cr. Wita it h""t 'I !tr
WithlI.DwO 51117,11OAc. Il-'vap. thefillratt, after -iWit, of
nil
(Im ~aml fmth to nvar drvnr~~%. Dizz(Avr the In 23
1"I. of 61V 1-1clatiddif. Ill 10-InG 10. To the
20 ii-Ill. tif 1110, "Itiri enclug') MILOU to MAI: tll~! ~nfn.
ba.iic- 'Pist. the AI(OH),, midlvz ('01 is to crolv.
Hut rin tfic. stepw bilb [~)r "I Im. fitt~'V' '1114 'va-Al wifil hot
NUINIO; FrAn' If life pf'jL ii v-cui 'witit Cc, ill
nm[ w".igh,

- -

Chemical Abst.
Vol. 48 No.. 9
May 10, 1954
Analytical Chemistry
Polarographic tavtfora 8 00fuu0n Of fARw 2
v :14 ILI
in
r,57C.A. 47, VAM.

B. V"':-r~k ar-I k
Chemical Abst. M Lanly 47, 77T
TV
g~
lorometer v;ith a Se cell Is
Vol. 48 No. 6 new 0ittNq L
Mar. 25, 1954 M. Hudlicky
Apparatus, Plant Equipm.Gnt, and Unit Operations

PELICHOVA, Hana; KRAML,J.; CBMELAR, M.; 'JECERFZp B.
Precipitating and binding antibodies against human intestinal
alkaline phosphatase. Folia b1ol. (Praha) 11 no.3t2O8-2U 165
1. First Department of ~bdical and Forensic Chemistry-, Faculty
of General Medicine, Charles University, Prague.

Nl~- keN, -

CZECHOSLOVAM/Optica - Photometry. Colorimetry. K
Abs Jour Ref 2.hur Fizika, No 10, 1959, 23971
Author Vecerek, Bretislav; Vecerkova, Jamdla
Inst
Title SiLTple Photocolorimeter.
Orig Pub Chem. PnrWsl, 1959, 9, No 3, 137-138
Abstract A photoelectric photoi:icter, intended for chmitcal titra-
tion, consists of a--. incrti-descent lapp, fed by stabili-
zed voltage, a diaphragi 0-5 m ia diameter, optical
filter, a c-avette, and a selenimi photocell, the c~i:reut
of which is neasured with a 65~lVanozmeter. -- Yv. M.
K,itev
Card 1/1

'MCFMK, Bretislav
Automatic fraction collectors. Chem, listy 57 no.4.-337-347
Ap #63.
1. 1. Ustav pro chemii lekarskou a poudni., Fakulta vaeobecteho
lekarstvi., Karlova universitag Praha. -

VEGUIEK, Bratislair; IfICHAIEK, Pavel
tion in analytic c-hemistry. Pt. 3. Chem listY 57 no.3:264-
268 mr 163.
1. 1. ustav pro chemii lekarskou a soudni, Fakulta vseobooneho
lekarstvi,v Karlova universital, Praha a 11stav radiotechniky,
Ceske vyaoke uceni technicke., Praha.

Studie's on th,~ naphthalene spries. 1. PrpparaV on of 11-arion-l-r3aphthoic acid.
P. 772.
CHECTINKE LISTY (Cheskoslovenska akademic ved. Ceskaslovenska spotlerost
cherdeks) Praha, Czechoslovakia. Vol. U, no. 5, May 1955-
Mor.thly List of East European Accessiors (=-AI), LC, 'Tol. 9, no. 1, Jan 1960
Uncla.

VECEREK~ B.
"Automaticn in analytic chemistry. TT. An apparatus for serial estimation of
enzyme activities"
Chemicke Listy. Praha, Czechoslovakia. V01. 53, no. 3, Mar 1959
YDnthly list of East European Accessions (EEAI), LC, Vol. 8, No. 7j. July 59, Unclas

I
CZECHGGLOIh*ZI;,/Gc-,ncra1 Trublenc; of Ila - Tmiors. U.
i *;Ctaloolisra.
Abs jour : fl~e-.7 7.'tur - T3i,)I., No 21, 10,t'-18; 981-75
)r : Vecerch- Bret-'slav; laic!, llf--rcl; Vecorkova, Jai-,lfla;
kuthc
ChtmAcla, BeOxic 1
Inst : Ulliversi"C"Is Carcdilia
Title : Curves of Activity of 1-iosphatases in Srx:,~ Cas-'--~ z-f
Carcino:n.
Gr-i~'! Pub : Uaiv. carDlina. Med., 1955, 3iij)-pl. No 11 176-131
Abstract : 13y stuo-y of i -!;c ac-*U--'.v:L"'Y (!Wi,) in blooe. -o-.'
phospliat- - U-
uit-li tu:-mrs, it Ir-s 1"Act' t'.at its fluctuation it"s relatod
t-.~ tho lapse of tiI.Ic aft,"r UoDO. drawin,,I,. R.Timcliall-oly
Oxxiing, IIIiA ia tien it increases, rcacIJa.-I- a
after 2-6 hours, that it atpLia rct-Livn-, 'U*,.
i,Driml. In the bloocl 1-.,2~ltlly imlividuals, GI'.c;-, "luct-L'a-
care, 1/1 tions ucre n-A noteft. --- S.Ya. Marmorshtcyn
- 24 -

VBCXM, Bretislav; KACL, Karel; VZOMMU, Jarmila; CHUNDELA, Be&rich
Fluorometry; IT. Determination of phosphatases acid in blood
erum. Vnitr. lek., Brno I n0-3:168-171 Mar 55.
Z I. ustavu pro chemii lekarskou XU v Praze, predaosta prof.
acl. MUDr. B. V., Praha II, Katerinska 32, 1. ust.
pro chemii lek.
(PHOSPWASICS, in blood
acid, determ. by fluorometry.)
(Bj'OOD
phosphatase acid determ. by fluorometry.)

WAGNER, Jindrich; KRAUS, Pavel; VFXHM, Bretolav
Hicrodetermination of isonicotinic acid hy(irazide. Cesk.
farm. 4 no-8:389-393 Oct 55.
1. Z I. ustAvu pro lekarokou chemii (prednosta prof. Dr.
Karel Knol) a z Vvskumneho ustaru tubarkulosy, Praha
(reditel doe. Mr. Rudolf Krivinka).
(NICOTINIC ACID ISOMIS, determination
ieoniazid, microdeterm.)

V67C 6-,f
K,
~a
F
jou:.".
71.300
Vect-rok
Vecerk
ov
-
a, j.
S.*-iZT,l'ie prot clcGjn, .r
;?
Chen.'
110 3, 1-37-139
a
whicl-
-1 cle-&-Ici~ed at tj,e Institute of Th&-~apc~i.;,
r '-Ilelaist.
Tj" I i `3 t y -"T 4' L : Cal-I the cotr,~`ic
labontrilly. 0.rle I!t parts
CAIU:

HYNIE, I.; VECEREK, B,
A fluorometric method for the determination of ketone bodies.
Acta univ. carol. [jred.) Suppl. 11+011-316 161.
1. 1. ustav pro chemii lekarskou a soudni fakulty vseobeeneho lekarstvi
11
University Karlovy v Praze, prednosta of. dr. K. Kael.
(KETONE BODIES chemT -

LEDVINA, Milos; CHUNDNA, Bodrich; VECUM Bretislav; KACL, Karel
Toxicological determination of barbiturates by paper chromatography.
Cook. farm. 4 no-8:386-388 Oct 55.
1. Z 1. ustnvu pro chemii lekarskou Ft ustavu pro chemii soudni
toxikologii a m1krookopi pri fakulte veeobeeneho. lekarstvi
university Karlovy, Prednosta prof. Dr. Karel Xacl.
(BARBITURATES, determination
chromatography. new method)
(CHRCKATOGRAPHY
of barbiturates, now method)

ISAUL,
Mono- and dihydroxybensoic acids. Ceok. farm. 4 no.8.392-
395 Oct 55.
1. Z I ustavu pro chemii lekarskou Xarlovy university v P:qaze.
(PYROCATEMOL, deriv.
dihydroxybenzoi acids)
(RISORCINOL. deriv.
dihydroxybenzoic acids)
(GXRPISATBS),
(BMOATRS,
o-, m- & p-hydroxvbenzoic aclWs)

-L: L~- .I-- ~, t - 2:.., ! j ! . .. ~.. , . '. , - , ,., ~ , - 7. , . .;: - . . , % ~. ~ . - I ! ~~ , , '. - - ~ - -- - "- - ---

VECEIREEK, B. and others.
Electromagnetic automatic pipette.
P. 487 (Chemicky PrurVrul. Vol. 7, no. 9, Sept. 1957, Praha, Czechoslovakia)
Monthly Index of East European Accessions (EM) LC. V61.7. no. 2,
February 1958

TUREK, J. ; VECFJM. B.
On the history of medical chemistry at the Karlova University in
Prague. Sborn.lek. 62 no3:80-86 1960.
1. 1. ustav pro chemii lekarskou. fakulty voeobeeneho lekaretvi
University Karlovy v Praze, rednosta prof.dr. inz. Karel Kacl.
(CHEMISTRY hiet.~ -
(BIOCHEMISTRY bist.)

STRAUSS,
Attempts to influence the sensitivity of laboratory anlm4ls to
the virus of ornithosis. Cask.opidem.mikrob.imun.10 no.2:92-97
Mr, 161.
.1. Ustav epidemiologie a mikrobiologie v Praze. I. ustav pro chemii
leknrskou a soudni 1ekPfnk.Kqr1ovy university v Praze.
(MIYAGAWARELLA)
(ORMTHOSIS virol)

VECEREKY B.
"Medical biochemistryll by S.M. Rapoport. Re7iewed by
B. Vecerek. Chem listy 58 no.1:35-36 Ja'64.

VECH?FX, 9.
"A sirrilple photocolorimeter."
CHalICKY FRMTISL, Praha, Czechoslovakia, Vol. 9, No. 3, March 1959.
Monthly List of Edst European Accessions (T, AI), L", Val. 8, No. 9, Sentember 1959.
UnclaS54fied.

,.'p,
J C. c F ~~ *[-- V-- ,
,,,-I - -i :
i ,
11 1- - . .. ,I
. C
R

L L
Determ.=!,.on o! a,;~ serum
-tk t,
PjP-71
"1.54 A
Ilet"JA 15
cn~ql
U~C A f the plit-
t-n ,I" 3,hjrM-. I
C' .4 45 -t!:~fV f th, 't
Df !,C,fl:zan
; T rAnek

MAU, K.; VECEIREK, B.; VECERKOVA, J.; CHUNDEIA, B.
Yluorometry. III. Fluorometric determination of alkaline phosphatiase
in blood serum. Gas. lek. cesk. 93 no.22-23:621-623 4 June 54.
1. Z I. ustava pro chemil lekarskou Karlovy university Y Praze.
Prednosta. prof. Dr Karel Kacl.
(BLOODO
phosphataae, alkaline, determ.)
(PFOSPHATASESO
alkaline. in blood, determ.)

Fluorimetry. 111. Fluorfinetric estiinaltion of alkallno
phosphatitses in blood serum. Karel KALI, B. Werek j
Vc&rkovd, in(] B-.'Chuad~1a (L ilstav pro Mt~. 11;
a
C4ccli.), easa~i~ Letblafil ee~~Sch 93, 0*21-20054).
-~-SMIXIIIUWS method (Cal. 45, ".6204) for the "tit. of pbos-
PlIALOC W Itten giinplifitd by using fluorinictry for
the Wit. of 2-naplithol: ~ Ten. ~c. barbital buffer (pH 9.1),
10 cc. aq. 5olit. cttlatg. 2 zu'j. Nat 2-naphthyl phosphate, and.
siel it'll iii i, sllixvd alit iiicullitcillbr.ut27'.itmfO-m..I
flask. tkitix t tic U4 Mil. of 0.6 cc. 4N M%Off, fluortscence is
measured by wshix it filter.1vith *a, max. transmittance at'
4300 A. Units (if activity are read from a standard curve.
The nican value for tilk. phosphaL-Lws obtained in normal
IV o It. Hais

CZECHOSLOVAKIA
VECEREK KRANILP J.; PELICIIOVA,, If.; MOAN, J.; CHIMSLAR0 M.;
141~0 __AQ6.0
-STYPER, S.
1. Institute for Medical and Forensic Chemistry, Faculty
of General Medicine, Karlovy Universitys Prague - (for all),
Prague, Collection of Czechoslovak Chemical Communicatigns,
No 11, November 1965, PP 3964-3966*
"Phosphatases. Part 2: Changes in the composition of human
intestinal end kidney alkaline phosphatase during purifi-
cation,"
6)

CZECHOSLOVA~,' -1111S.
J~. ; -OVOT-I" , E. ; Laborat -)r-, ol' 1--cy.-Ico
; 09Y
j. ; I
P
and Forensic C'nenji-st-ry, .7 -aculty of General ;,Iedicine, CharIC3 Uni-
varsity ( Laboratuor pro Toxi~,oio--ii a Soudni Chr;,;ili -~',,..:ulty Vse-
obecenho Lelcarstvi KU), Prac-,,ue.
"Use of Paner Chro-matorranhy in the Toxological Detection of
Drugs. V. Fast Proof of Ari-iidopyrine in Urine, Based on the De-
Uection of its I-letabolites."
Prague, Ces'7-oslovenzka Farmlocie, Vol 15, "-o 9, Nov '06, pp L91-495
I~bst-ract /,7.uthors' suy,-r,a--- no'-I-Pied7: The Yietlhod uses
- - - - - 1, - j : ~- - k,
a solvent niixture of _f'ormami-de and be~nzene. The identification
is ba'sed on sin-,,ultaneous occurrence of metabolites o.-5" ar.-,idopyrine
LI.-me-uhylar.-,inoan'u-i-,oyrine, 4-aninoa-ituipyrine, rubazonic acid, and
met~-,ylrulbazonic acid. Am*Ldo--,yrJ*Lre and its metabolites are iden-
if i e d ]:-Cactlons '-!:th 7 rea"ents, 2 Pigurez, I Table,
by color
9 -Western, 6 Czech references. (Manusdript received 1 Dee 65).
1/1

VEC:ERIKOVA, F.; FMMEER, M.
Use of monochromator for study of changes of fine structure of coal and coke.
P. 90
FALIVA. (Ministerstvc paliv a Ceskoslovenska vedecka technicka spoleenost
pro vyuziti pri Ceskoslovenske akademi ved) Fraha, Czechoslovakia., Vol. 39p
No. 3, Mar. 1959
Monthly List of Fast Eurorean Accessions (EEAI), LV, Vol. 8, No. -?, Julj~ 1959
Uncl.

TuLxors. U.
Abs Jour 7.:ur Diol., No 21, 1958, 98175
Author Vcccr,:I:, Bretisliv; Kacl, 11' arcl; Vecerkova, Jan.iila,
Llst Uni-Varsitas Carriline.
Title Curve!, of Activity UZ 1`11.)SIllatases ill Souc cas-:s
Carciii~).-.n.
Ori~~ Pub Uid.v. camlina. Me(!-, 1955, Su,)i)l. 110 1; 176-131
Abstract Dy st-ucy of ph-osphataso act-vity (111-JI.) in blooc. D:.' --m-'u-ic-n-tus
witn tunnrs) it was n-taC its fluctuation i;as ralatcOL.
t_; the lajpse of tiT,:c a.tor dra,,rJn_.-,.
upon cla-awinE;, MA ia n'll-ntal, thcn it increases, a
rn.:Lritui aftor 2-6 hoursi x:.`,-or that it again rct7m:ns `L*-
il_~)rraal. In the bloo(l of individuals, iwcl_ I'luctua-
Card 1/1 tions ucre nA notecl. S.Ya. 'Marnorshtcyn
- 24

CZECHOSLOVAKM/ optic a - Photometry. Colorimetry. K
Abs Jour : Ref Zhur Fizika, No 10, 1959, 23971
"A%Uth:)r : Vecerek-, Bretislav; Vecerkova, Jarmila
I'--st
Title : Siuple Photocoloriiaeter.
Orig Pub : Cheri. pr,,uVsl, 1959, 9, No 3, 137-138
Abstract : A photoelectric pbotormter, intended for cheLitcal titra-
tion, consists of a.. incandescent lapp, fed by stabili-
zed voltage, a diaphragi 0.5 mr:i iii diameter, cm,~ optical
filter, a c-ivette, and a selenixn photocell, the c.rrent
of which is neasvred vith a g5klVanometer. -- Yr. M.
Katev
Card 1/1

4"95a. UIMUIC OF TE PUROWPHIC CGNFQ~?rSAcl' COW
Sslar, II.F. 4w vacwtKora, H. (Uhil (CM, fragw 1.
JVW~2-5=30T*- T
he autrtwa ha-m smutl~ff~ stn=mve or tw coal
substariod by mwag of X-mys. Vvy give thm qwntIrat!vn uvatntlcil of UiD
MdtographS, ard conclw% that the irld Intka-val NO 1,1 Mo baste crlt(!rfcn
of t1v struouzral changas; thay ana3yso Its ftendance an tbD carbcnificatIcn,

SUST" AMO F. M.
Y_ gral MIN paliv. IM, No, 1. Pp.
101-16, abstractcd in J. Appi. Ckew. Moodou), 6 111 1-155
were lwkde to a%m the relative merits of
the fouOWL"S gnedws for measuslug (tic particle size of coal wo
tampule 4uA*: (1) coUrging phototnicrocmphs to 24 x 30 cm.
dn4 taftsuring the partkict with a paper steucil; (2) measuring
the bkd=tng ol a phowgraphic plute with a rec(Kdiag photom-
tile particle size olithe ser"o,of a Pro-
jecdog micrumve. Wthods I aad 3 were equally cuit2hic Icw
practic-Al requirements, tiot mr1himl .11* cheaper and quicker be-
cause it Involves no pftotogrupble work, It Is remailitn4ed for,
the rapid and precise determittation of particle s4ts