現(xiàn)如今,很多朋友都喜歡用活性炭去除家里裝修后的甲醛,或是實(shí)驗(yàn)室里的有毒性氣體等需要活性炭吸附的地方;活性炭?jī)艋諝鈨?yōu)點(diǎn)頗多:環(huán)保健康、無(wú)二次污染、太陽(yáng)暴曬可反復(fù)使用、吸附時(shí)間長(zhǎng)。

但是很多購(gòu)買了活性炭的朋友只是是一堆堆的放在室內(nèi)的某個(gè)角落,日前遼寧石油化工大學(xué)的一個(gè)研究小組進(jìn)行了研磨實(shí)驗(yàn),結(jié)果卻表明,關(guān)于活性炭,半數(shù)用戶并沒(méi)有真正利用好活性炭的效能。

為了研究活性炭的使用方法,首先得研究活性炭的特性,科研人員介紹,活性炭按原料的種類主要分為木質(zhì)活性炭、煤質(zhì)活性炭、果殼類活性炭、石油焦活性炭等;按外觀形狀分為顆粒活性炭、粉狀活性炭和活性炭纖維等;其中粉狀活性炭,是吸附效率最高的,因?yàn)槠鋵?duì)于污染物的接觸表面積最多,同時(shí)是需要用研磨儀來(lái)進(jìn)行研磨成極細(xì)微粒徑的。

活性炭的研磨---凈信全自動(dòng)研磨儀(JXFSTPRP-24)
研磨實(shí)例:
均勻處理活性炭,讓樣品更加均勻。
1.準(zhǔn)備好個(gè)離心管,陶瓷珠若干個(gè)。
2.將準(zhǔn)備好的活性炭放入凈信研磨儀JXFSTPRP-24的離心管中。
3.接下來(lái)在離心管中放入幾顆陶瓷珠、蓋好離心管蓋子放入金屬適配器中。
4.再將金屬適配器裝入凈信研磨儀JXFSTPRP-24中,配平擺放,黑色螺旋旋緊。
5.設(shè)定好相關(guān)參數(shù),啟動(dòng)儀器至研磨程序結(jié)束,啟動(dòng)儀器至研磨程序結(jié)束,即可得到如圖片所示樣品。
將樣品依次加入研磨管如圖片所示,更好的混勻樣品實(shí)驗(yàn)。

根據(jù)研磨后檢測(cè)結(jié)果表示:
(1)活性炭雖然吸附效果好但吸附量不大,而且當(dāng)吸附的有害物達(dá)到一定量時(shí),它們反倒會(huì)將有害物釋放(脫附)出來(lái),造成二次污染;
(2)活性炭在室溫較高時(shí)吸附效果差,并更容易脫附;
(3)活性炭對(duì)低濃度的有害氣體、臭、異味的吸附效果不好。
(4)利用化學(xué)反應(yīng)的原理,對(duì)從污染源中釋放出來(lái)的有毒、有害氣體或臭味,異味的分子進(jìn)行持續(xù)的反應(yīng)吸附,使其轉(zhuǎn)化成為無(wú)害或無(wú)臭味的分子,以達(dá)到凈化空氣的目的,且吸附時(shí)不受環(huán)境溫度及有害氣體、臭、異味的濃度高低的影響。
研磨前后對(duì)比圖:

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Vertical mixer
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Non-contact ultrasonic DNA interrupter
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Standard vacuum freeze dryer
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Orbital shaker
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Non-contact shaped DNA interrupter
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Rotary mixer HS-5
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Dual-channel non-contact energy-concentrated DNA interrupter
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Orbital shaker
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Roller mixer (blood mixer)
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Rotational viscometer
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Inching vortex oscillator
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Handheld ultrasonic cell pulverizer
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Cup type ultrasonic cell crusher
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Handheld ultrasonic cell pulverizer
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Ultra-micro ultrasonic cell crusher
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Micro centrifuge
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Rotational viscometer
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Multifunctional vortex oscillator
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Handheld ultrasonic cell crusher
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Handheld ultrasonic cell crusher
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Integrated ultrasonic cell crusher
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Multi-tube vortex oscillator
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Micro centrifuge
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Integrated ultrasonic cell crusher
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Rotational viscometer
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Ultrasonic crusher
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Nitrogen Blowing Apparatus
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Ultrasonic cell crusher integrated
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Ultrasonic crusher
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Nitrogen Blowing Apparatus
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Snowflake ice maker
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Integrated ultrasonic cell crusher
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Ultrasonic crusher
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Microplate centrifuge
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Nitrogen Blowing Apparatus
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Split ultrasonic cell disruptor
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Ultrasonic crusher
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Snowflake ice maker
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Ultrasonic cell crusher
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Microplate horizontal centrifuge
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Nitrogen Blowing Apparatus
-
Integrated ultrasonic cell crusher
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Dual-channel non-contact energy-concentrated DNA interrupter
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Round water bath nitrogen blowing instrument
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Ultrasonic cell crusher
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Ultrasonic cell crusher
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Nitrogen Blowing Apparatus
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Visual nitrogen blowing instrument
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Intelligent ultrasonic crusher
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Ultrasonic cell crusher
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Ultrasonic crusher
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Constant temperature airtight ultrasonic reactor
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Non-contact ultrasonic pulverizer
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Soil Ball Mill
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Automatic sample fast grinder-24L
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Microwave ultrasonic extractor
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Soil Ball Mill
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Planetary Ball Mill
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Automatic sample fast grinder-32L
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Planetary Ball Mill
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Planetary Ball Mill
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Automatic sample fast grinder-48L
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High energy grinder
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High-throughput soil grinder
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Glass bead sterilizer
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Automatic sample fast grinder-64L
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Infrared inoculation loop sterilizer
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Automatic sample fast grinder-96L
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Infrared inoculation loop sterilizer
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Hair drug detector
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Hair screening drug detector
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Hair treatment instrument
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Biological indicator incubator
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Portable hair grinder
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Hair Grinding and Shredder
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Multi-sample tissue grinding machine-FEIII
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Multi-sample tissue grinder-FEII
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Tissue grinder
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Tissue grinding machine
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Plant tissue processing system
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Multi-sample tissue grinding machine-192
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Multi-sample tissue grinder-96
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Multi-sample tissue grinder-64
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Multi-sample tissue grinder -48
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Multi-sample tissue grinding machine-32
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Multi-sample tissue grinder-24
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QuEChERS pre-processing all-in-one machine
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QuEChERS sample preparation system
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Multi-sample tissue grinder-32L
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Automatic sample rapid grinding machine-48
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Automatic sample rapid grinder-32
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Automatic sample rapid grinding machine
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Fully automatic sample rapid cryogenic grinder
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Multi-sample tissue grinder-48L
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Three-dimensional high-speed vibration ball mill
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Multi-sample tissue grinder-192L
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Three-head shock type high-energy ball mill
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Fast tissue low-temperature crushing homogenizer
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Multifunctional homogenizer
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Multi-sample tissue grinder-96L
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3D Centrifugal Cryogenic Grinder
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Vertical oscillator
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Constant temperature and humidity weighing system
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Water quality chlorophyll grinder
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Chlorophyll A grinder
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Mortar grinder
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High-efficiency vibrating disc grinder
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Fully automatic cryogenic sample processing system
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Automatic sample rapid grinder
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Multi-sample tissue grinder-64L
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Multi-channel microbial magnetic bead homogenizer
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Automatic sample rapid grinding machine-64
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Automatic sample rapid grinder-96
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Automatic sample rapid grinder-192
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Three-dimensional mixer
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Molecular hybridization furnace
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Cryogenic Grinder JXFSTPRP-CLN
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Cryogenic tissue grinder
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Cryogenic tissue grinder
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High-speed cryogenic grinding homogenizer
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Semi-automatic hammer cyclone mill
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High-speed tissue grinding machine KZ-II
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Low temperature hammer type cyclone mill
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Automatic sample rapid grinding machine
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Automatic sample rapid grinder-24
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QuEChERS pre-processing all-in-one machine
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Immersion liquid nitrogen Cryogenic Grinder
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Automatic liquid nitrogen freezing grinding machine
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Cryogenic Grinder (Semi-automatic Liquid Nitrogen Cryogenic Grinder)
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3D sample tissue grinder
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Cryogenic Grinding Machine
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Automatic hammer cyclone mill
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Multi-sample Tissue Grinder-24L
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Constant temperature mixer
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Beating sample homogenizer
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Beating aseptic homogenizer
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Jaw Crusher
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Automatic homogenizer
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Single cell suspension preparation instrument
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Single cell preparation instrument (temperature control)
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Biological indicator incubator
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Dry thermostat
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Knife grinder
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Constant temperature mixer (refrigeration)
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Microplate Heat Sealer
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Microplate Oscillator
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Oscillator special for microplate
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Microplate incubator
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Microplate incubator
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Thermostatic metal bath
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Temperature-controlled single cell suspension preparation instrument
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High-speed grinding homogenizer-192
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Bone and Teeth Grinder
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Frozen Bone Teeth Crusher
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Basic cryogenic grinder
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Cryogenic grinder
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Frozen grinder
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Cryogenic tissue grinder
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3D Centrifugal Cryogenic Grinder
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Cross-beating grinder
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Gene amplification instrument PCR instrument THT-96G (gradient type)
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Automatic rotating sampler
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Flip oscillator
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Fully Automatic Flip Oscillator
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Fully automatic low temperature flip oscillator
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Handheld Grinder
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High Power Handheld Grinder
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Parallel grinder
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Aquatic product animal husbandry solid phase extraction device
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Gradient amplification PCR detection analyzer THG-96G (gradient)
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3D Cryogenic Grinder
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Thermostatic metal bath refrigeration type
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Mini thermostat metal bath
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Mini refrigerated metal bath
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Thermostatic metal bath
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Thermostatic metal bath
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High temperature four-module thermostatic metal bath
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Microplate Shaker
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High energy ball mill
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Low-Temperature Cyclone Hammer Mill
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Mini grinder
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Mini Diamond Grinding Machine
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MINI rapid detection grinder
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Portable sample grinder
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Portable sample grinder
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Small bead mill/cell bead mill
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Three-dimensional mixer
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Hot-lid metal bath
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High Throughput Tissue Grinder-2018
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Oil-free vacuum pump
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High temperature type CNC super constant temperature bath
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Solid Phase Extraction Apparatus
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Solid phase extraction device
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Grinding bead homogenizer
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Beating aseptic homogenizer
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Fully automatic homogenizer
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New type soil drying box
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High Throughput Tissue Grinder - GTL64
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In situ hybridization
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High Throughput Grinder
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Medium Flux Grinder
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High-throughput sample rapid grinder
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Ultra High Throughput Tissue Grinder
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Ultra High Throughput Tissue Grinder
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UV crosslinker
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Three-dimensional mixer
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Sample pre-processing machine
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