What is the difference between a TopBuret and a dispenser?

A dispenser, such as the Eppendorf Varispenser, delivers a preset volume. A reciprocating pump is used to draw up the required volume and deliver it at once. This process is particularly suitable for identical volumes which are dispensed frequently. With a TopBuret an unknown volume is delivered. With analytical procedures such as the determination of a pH value or titration, liquid is supplied until the required effect occurs. The quantity of liquid delivered is then read off at the burette. During dispensing the liquid is not delivered from a reservoir but is supplied continuously from the bottle.

Does the display of Top Buret inform users in advance when the battery has to be replaced?

Yes. If the voltage is too low (or if the battery is flat), a battery symbol lights up in top left of the LCD. The battery should then be changed.

What is the difference between Top Buret M and Top Buret H?

The difference is the amount of liquid that can be dispensed by turning the dispensing wheel one revolution. It is possible to dispense 2.5 ml per revolution with Top Buret M, and 5 ml per revolution with Top Buret H.

What is the maximum volume dispensed pro revolution with the Top Buret M and Top Buret H?

The maximum volume per time unit that can be dispensed (limited by the flow resistance) is 1.25 ml/sec for the TopBuret M and 2.5 ml/sec for the TopBuret H, since one revolution should not be faster than 2 sec for reasons of accuracy. 2.5 ml/revolution can be dispensed with the TopBuret M and 5 ml/revolution for the TopBuret H.

Can the telescopic filling tube of the Top Buret be autoclaved?

The device as a whole cannot be autoclaved, but the telescopic filling tube made of fluorocarbon can be autoclaved up to the permitted temperature of 121 °C. It is important not to separate the two parts of the tube for autoclaving and to wait for the tube to cool down completely before inserting it back in the Top Buret.

Is Top Buret supplied with a calibration certificate?

Yes. This certificate is on the back page of the operating manual.

How chemically resistant is the Top Buret?

The TopBuret is suitable for dispensing the following titration solutions up to a concentration of 1 mol/L: - Ammonium iron(II) sulfate solution - Ammonium thiocyanate solution - Barium chloride solution - Bromid bromate solution - Cerium/IV) sulfate solution - EDTA solution - Iron(II) sulfate solution - Acetic acid - Iodine solution - Caustic potash solution - Potassium bromate solution - Potassium bromide bromate solution - Potassium dichromate solution - Potassium iodate solution - Potassium permanganate solution - Potassium thiocyanate solution - Sodium arsenite solution - Sodium carbonate solution - Sodium chloride solution - Sodium nitrite solution - Sodium thiosulfate solution - Caustic soda - Oxalic acid - Perchloric acid - Nitric acid - Hydrochloric acid - Sulfuric acid - Silver nitrate solution - Tetra-n-butylammonium hydroxide solution - Zinc sulfate solution

Can the Top Buret be used for EDTA?

Yes, EDTA solution up to a concentration of 1 mol/L can be used.

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Eppendorf Top Buret - 바틀탑 뷰렛

The Eppendorf Top Buret is ideal for continuous titration

The Eppendorf Top Buret features a user-friendly display – Example Model H

A drying tube is available as accessory for the Eppendorf Top Buret

Eppendorf Top Buret – Two models for different volumes

Eppendorf Top Buret – Model H used in a chemical lab

제품 정보

혁신적인 Eppendorf Top Buret은 수동 액체 적정의 새로운 기준을 제시합니다. Pulse-Free 분주 기술은 간단하고 안전하게 정확한 양을 정밀 분주합니다. 또한 사용자 친화적인 디스플레이와 간단한 제어 기능을 갖춘 견고한 디지털 탑바틀 뷰렛은 정말로 사용하기 쉽습니다.

제품 정보 자세히 표시

Eppendorf의 지속가능성과 인체공학에 대해 자세히 알아보기

데모 신청

이 페이지 하단에서 추가 다운로드 자료를찾을 수 있습니다.

제품 정보

기술 정보

애플리케이션

특징

연속 Pulse-Free 수동 적정
Eppendorf Top Buret은 정밀하고 사용하기 쉬우며, 수동 액체 적정의 새로운 표준을 설정합니다. 직관적인 디지털 바틀탑 뷰렛에서 액체가 한 방울씩 지속적이고 정확한 양으로 분주되며, 분주되는 볼륨이 디스플레이에 표시됩니다. 액체 볼륨은 10 uL-999.9 mL까지 표시됩니다

분주 속도가 다양한 두 가지 모드
다양한 적정 요구사항을 충족시키기 위해 Eppendorf Top Buret가 두 가지 모델로 제공됩니다. M 모델은 회전당 분주량이 2,500 µL이고, H 모델은 회전당 분주량이 5,000 µL입니다.

Robust and easy to use, time after time

This digital bottletop burette is extremely robust, and its ergonomic design and simple control wheels guarantee easy and fatigue-free operation.

How to use an Eppendorf Top Buret bottle-top burette

Adjust the telescopic aspirating tube to your bottle height before attaching the burette to the bottle with the appropriate adapter. Vent the burette by turning the discharge valve toggle to the side, removing the control panel and turning the dispensing wheel forward until all air bubbles have visibly left the system. Turn the discharge valve toggle back to the front, turn the dispensing wheel until liquid comes out of the discharge tube and re-attach the control panel. Press start to start a new titration flow. The burette automatically turns off after a few minutes. Learn more in our tutorial video and by reading the operating manual.

간단히 보기

사양	Eppendorf Top Buret - 4965000017	Eppendorf Top Buret - 4965000025

제품 유형	디스펜서	디스펜서
피펫팅 유형	직접 치환 시스템	직접 치환 시스템
채널 수	1-채널	1-채널
용량 범위	0.01 – 999.9 mL	0.01 – 999.9 mL
작동 모드	수동	수동
Random measurement error	2.5 mL: ± 1%; ± 0.025 mL 12.5 mL: ± 0.2%; ± 0.025 mL 25 mL: ± 0.1%; ± 0.025 mL	5 mL: ± 1%; ± 0.05 mL 25 mL: ± 0.2%; ± 0.05 mL 50 mL: ± 0.1%; ± 0.05 mL
Systematic measurement error	2.5 mL: ± 2%; ± 0.05 mL 12.5 mL: ± 0.4%; ± 0.05 mL 25 mL: ± 0.2%; ± 0.05 mL	5 mL: ± 2%; ± 0.1 mL 25 mL: ± 0.4%; ± 0.1 mL 50 mL: ± 0.2%; ± 0.1 mL
오토클레이브 가능	no	no
배터리 유형	AAA 배터리(2개)	AAA 배터리(2개)
개방형 시스템(타사 소모품)	예	예
나사	GL 45	GL 45
Bottle 나사 어댑터 포함	GL 32, GL 38, S 40¹⁾	GL 32, GL 38, S 40¹⁾
제품 구성	뷰렛, 배터리 LR03/AAA 1.5V(x2), 사용 설명서, 캐뉼라 암, 배출 튜브(너트 포함), 튜브 홀더, 텔레스코픽 흡입 튜브, 나사식 어댑터(x3: GL 45/S 40, GL 45/GL 38 , GL 45/GL 32)	뷰렛, 배터리 LR03/AAA 1.5V(x2), 사용 설명서, 캐뉼라 암, 배출 튜브(너트 포함), 튜브 홀더, 텔레스코픽 흡입 튜브, 나사식 어댑터(x3: GL 45/S 40, GL 45/GL 38 , GL 45/GL 32)