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212:
intensively characterized for shake flask bioreactors. Out-of-phase conditions are associated with a strong decrease in mixing performance, oxygen transfer, and power input. Main factor for out-of-phase operation is the viscosity of the culture medium, but also the vessel diameter, low filling levels and/or a high number of baffles.
204:
and shaking. The use of minimal liquid volumes, typically no more than one fifth of the total flask volume, and baffles molded into the flask's internal surface both serve to maximize gas transfer and promote chaotic mixing when the flasks are orbitally shaken. The oxygen transfer rate in
Erlenmeyer
479:
Schiefelbein S, Fröhlich A, John GT, Beutler F, Wittmann C, Becker J (2013): "Oxygen supply in disposable shake-flasks: prediction of oxygen transfer rate, oxygen saturation and maximum cell concentration during aerobic growth". Biotechnology
Letters. 35 (8): 1223-30, doi:10.1007/s10529-013-1203-9,
224:
previously restricted the sale of
Erlenmeyer flasks to those who have the requisite permits. On September 1, 2019, SB 616 amended the law so that permits are no longer required, but accurate inventory of this and certain other pieces of lab equipment must still be maintained, loss or theft must
211:
and mixing of liquid cultures further depend on rotation of the liquid "in-phase", meaning the synchronous movement of the liquid with the shaker table. Under certain conditions the shaking process leads to a breakdown of liquid motion – called "out-of-phase phenomenon". This phenomenon has been
513:
Buechs J, Maier U, Mildbradt C et al. (2000b): "Power consumption in shaking flasks on rotary shaking machines: II. Nondimensional description of specific power consumption and flow regimes in unbaffled flasks at elevated liquid viscosity". Biotechnol Bioeng. 68(6): 594-601,
113:
160:. The receiving flask is filled with a small amount of solvent, and heated to a boil. The hot solution is filtered through a fluted filter paper into the receiving flask. Hot vapors from the boiling solvent keep the filter funnel warm, avoiding the premature
343:, vol. 3 (January 1860), 21-22. He wrote that he first displayed the new flask at a pharmaceutical conference in Heidelberg in 1857, and that he had arranged for its commercial production and sale by local glassware manufacturers.
140:
and adding solvent and the indicator in the
Erlenmeyer flask. Such features similarly make the flask suitable for boiling liquids. Hot vapour condenses on the upper section of the Erlenmeyer flask, reducing
116:
120:
119:
115:
114:
121:
299:
118:
263:
530:
Buechs J, Lotter S, Mildbradt C (2001b): " Out-of-phase operating conditions, a hitherto unknown phenomenon in shaking bioreactors". Biochem Eng J. 7(2): 135-141,
613:
205:
flasks depends on the agitation speed, the liquid volume, and the shake-flask design. The shaking frequency has the most significant impact on oxygen transfer.
132:
The slanted sides and narrow neck of this flask allow the contents of the flask to be mixed by swirling, without risk of spillage, making them suitable for
1842:
1821:
1970:
117:
1931:
171:, Erlenmeyer flasks are not normally suitable for accurate volumetric measurements. Their stamped volumes are approximate within about 5% accuracy.
462:
Soccol CR, Pandey A, Larroche C (2013). Fermentation
Processes Engineering in the Food Industry. CRC Press Taylor & Francis Group, Florida.
1457:
80:
in its tapered body and narrow neck. Depending on the application, they may be constructed from glass or plastic, in a wide range of volumes.
387:
606:
467:
434:
1518:
497:
Kloeckner W, Diederichs S and Buechs J (2014): "Orbitally Shaken Single-Use
Bioreactors". Adv Biochem Eng Biotechnol. 138: 45-60,
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287:
1950:
275:
1955:
1786:
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1016:
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200:. Erlenmeyer flasks used in cell culture are sterilized and may feature vented closures to enhance gas exchange during
1960:
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1021:
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20:
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still be reported, and the owner must still allow audits of their records and equipment to be made.
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with a flat bottom, a conical body, and a cylindrical neck. It is named after the German chemist
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156:. The sample to be purified is heated to a boil, and sufficient solvent is added for complete
91:
or other connector for use with more specialized stoppers or attachment to other apparatus. A
64:
Erlenmeyer flasks have wide bases and narrow necks. They may be graduated, and often spots of
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The final two attributes of
Erlenmeyer flasks make them especially appropriate for
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The mouth of the
Erlenmeyer flask may have a beaded lip that can be
1837:
1816:
221:
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111:
25:
1391:
690:
339:
Emil
Erlenmeyer, "Zur chemischen und pharmazeutischen Technik,"
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Autoclaved sterile
Erlenmeyer flasks covered with aluminium foil
84:
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1412:
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loss. Erlenmeyer flasks' narrow necks can also support
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or covered. Alternatively, the neck may be fitted with
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220:To impede illicit drug manufacturers, the state of
354:"Definition of Erlenmeyer flask | Dictionary.com"
125:Method of swirling an Erlenmeyer flask during
607:
8:
1567:Nuclear magnetic resonance (NMR) instrument
388:Laboratory Flasks Information. 15 July 2016
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72:are used where they can be labeled with a
188:floating colonies in an Erlenmeyer flask.
1932:Instruments used in medical laboratories
269:Original drawing of the Erlenmeyer flask
1448:Inductively coupled plasma (ICP) device
316:
259:
1496:Transmission electron microscope (TEM)
377:Laboratory Glassware. 17 November 2011
61:(1825–1909), who invented it in 1860.
95:is a common design modification for
7:
341:Zeitschrift fĂĽr Chemie und Pharmacie
19:For the episode of The X-Files, see
293:Different sizes of Erlenmeyer flask
192:Erlenmeyer flasks are also used in
16:Laboratory flask with a flat bottom
1491:Scanning electron microscope (SEM)
399:Volumetric Glassware. 15 July 2016
281:Different styles Erlenmeyer flasks
14:
1971:1860 in the German Confederation
1536:Thermogravimetric analyzer (TGA)
1346:Nuclear magnetic resonance (NMR)
298:
286:
274:
262:
435:"Erlenmeyer Flasks and Beakers"
326:"Classic Kit: Erlenmeyer flask"
548:"TxDPS - Laws and Regulations"
1:
328:. Royal Society of Chemistry.
1987:
572:"TxDPS - News and Updates"
324:Andrea Sella (July 2008).
18:
1929:
1797:
1780:
1769:
1691:Time-domain reflectometer
1601:
1588:
1458:Liquid chromatograph (LC)
1421:
1408:
1081:
1068:
640:
629:
136:by placing it under the
1526:Melting-point apparatus
907:Cryogenic storage dewar
415:www.sciencebuddies.org/
196:for the preparation of
1951:Volumetric instruments
1463:Mass spectrometer (MS)
1453:Gas chromatograph (GC)
189:
129:
76:. It differs from the
31:
1838:Acid-resistant gloves
1519:differential scanning
411:"Method of titration"
182:
124:
29:
1956:Laboratory glassware
1415:Analytical chemistry
917:Laminar flow cabinet
623:Laboratory equipment
21:The Erlenmeyer Flask
1787:Personal protective
696:Meker–Fisher burner
1630:Function generator
1613:Bench power supply
1552:Analytical balance
1313:Ostwald viscometer
1308:Graduated cylinder
1047:Inoculation needle
358:www.dictionary.com
198:microbial cultures
190:
130:
38:, also known as a
32:
1961:German inventions
1938:
1937:
1925:
1924:
1921:
1920:
1898:Fire extinguisher
1888:Biosafety cabinet
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1696:Transistor tester
1686:Spectrum analyzer
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1403:
1400:
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1276:Measuring devices
1098:Soxhlet extractor
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1012:Spectrophotometer
1007:Pipeclay triangle
759:Mortar and pestle
576:www.dps.texas.gov
552:www.dps.texas.gov
439:www.dartmouth.edu
256:Additional images
216:Legal restriction
154:recrystallization
122:
1978:
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1676:Network analyzer
1603:
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1052:Inoculation loop
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862:Test tube holder
754:Magnetic stirrer
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441:. Archived from
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55:laboratory flask
36:Erlenmeyer flask
30:Erlenmeyer flask
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1966:1860 in science
1941:
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1913:Solvent cabinet
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1843:Eyewash station
1826:
1791:
1789:equipment (PPE)
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1640:Pulse generator
1606:Control devices
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1506:Thermochemistry
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1288:Conical measure
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1037:Test tube brush
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932:Picotiter plate
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877:Lab drying rack
836:Extension clamp
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162:crystallization
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59:Emil Erlenmeyer
53:, is a type of
44:British English
24:
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11:
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1908:Safety cabinet
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1868:Safety goggles
1865:
1863:Safety glasses
1860:
1858:Nitrile gloves
1855:
1853:Medical gloves
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1748:Alligator clip
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1722:Soldering iron
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1666:Logic analyzer
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1618:Current source
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1557:Colony counter
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1196:Vacuum (Dewar)
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661:Alcohol burner
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468:978-1439887653
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147:filter funnels
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99:under vacuum.
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1562:Spiral plater
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944:Weighing dish
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941:Weighing boat
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93:BĂĽchner flask
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62:
60:
56:
52:
50:
45:
41:
40:conical flask
37:
28:
22:
1893:Fire blanket
1831:Eye and hand
1817:Rubber apron
1681:Oscilloscope
1645:Potentiostat
1572:Plate reader
1468:pH indicator
1438:CHN analyzer
1433:AutoAnalyzer
1226:Round-bottom
1200:
1119:Boston round
982:Filter paper
937:Refrigerator
854:Retort stand
822:Clamp holder
818:Beaker clamp
784:Vortex mixer
779:Stirring rod
774:Static mixer
704:Teclu burner
579:. Retrieved
575:
566:
555:. Retrieved
551:
542:
526:
509:
493:
475:
458:
447:. Retrieved
443:the original
438:
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418:. Retrieved
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372:
361:. Retrieved
357:
348:
340:
335:
319:
219:
207:
194:microbiology
191:
183:
166:
151:
131:
108:In chemistry
89:ground glass
82:
66:ground glass
63:
47:
39:
35:
33:
1881:Other items
1807:Face shield
1654:Measurement
1635:Galvanostat
1595:Electronics
1545:Other items
1531:Thermometer
1514:Calorimeter
1443:Colorimeter
1387:Gas syringe
1370:Other items
1298:Eye dropper
1173:Watch glass
1158:Evaporating
1137:Cold finger
952:Other items
858:Screw clamp
850:Pinch clamp
839:Flask clamp
789:Wash bottle
744:Homogenizer
209:Oxygenation
185:Microcystis
158:dissolution
1945:Categories
1812:Respirator
1753:Test probe
1671:Multimeter
1483:Microscopy
1303:Eudiometer
1267:Separatory
1236:Volumetric
1201:Erlenmeyer
1129:Condensers
1093:Dean–Stark
1042:Wire brush
1002:Microscope
997:Centrifuge
972:Cork borer
927:Petri dish
902:Agar plate
889:Containers
872:Wire gauze
709:Water bath
671:Desiccator
581:2020-01-01
557:2020-01-01
449:2016-06-17
420:2016-07-08
363:2023-03-16
311:References
202:incubation
175:In biology
134:titrations
97:filtration
1903:Fume hood
1848:Glove box
1701:Voltmeter
1086:Apparatus
1075:Glassware
964:Autoclave
959:Aspirator
912:Incubator
846:Iron ring
769:Sonicator
739:Chemostat
681:Hot plate
127:titration
85:stoppered
49:titration
1802:Lab coat
1727:Tweezers
1717:Heat gun
1473:pH meter
1382:Bell jar
1262:Dropping
1216:Florence
1206:Fernbach
1168:Syracuse
1027:Scoopula
977:Crucible
686:Lab oven
536:11173302
520:10799984
503:23604207
486:23592306
229:See also
1741:General
1661:Ammeter
1361:Thistle
1318:Pipette
1293:Cuvette
1283:Burette
1252:BĂĽchner
1245:Funnels
1231:Schlenk
1211:Fleaker
1191:BĂĽchner
1112:Bottles
1032:Spatula
1022:Stopper
992:Forceps
892:Storage
809:Holders
729:Shakers
700:Striker
648:Heaters
635:General
235:Fleaker
169:beakers
143:solvent
46:) or a
1775:Safety
1377:Beaker
1356:Thiele
1341:Cragie
1336:Drying
1257:Hirsch
1221:Retort
1183:Flasks
1151:Dishes
1142:Liebig
1103:Kipp's
1017:Splint
827:Tripod
805:Clamps
801:Stands
764:Shaker
726:Mixers
651:Dryers
534:
518:
501:
484:
466:
250:Chemex
78:beaker
74:pencil
70:enamel
1710:Tools
1328:Tubes
1163:Petri
222:Texas
167:Like
138:buret
51:flask
1392:Vial
1351:Test
987:File
691:Kiln
532:PMID
516:PMID
499:PMID
482:PMID
464:ISBN
103:Uses
68:or
34:An
1947::
574:.
550:.
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413:.
356:.
164:.
149:.
615:e
608:t
601:v
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366:.
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42:(
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
