亚洲国产精品二区久久,日本美女后入式午夜视频在线观看,国产污视频在线观看,欧美日韩国产精品中文字幕在线观看

上海必泰生物科技有限公司
初級會員 | 第10年

18621924707

Millipore 密理博
日本東洋Advantec
PALL頗爾
Whatman沃特曼
雙圈濾紙
Whatman沃特曼診斷產(chǎn)品
Aisimo愛西默
實驗耗材類
Qiagen凱杰
Sartorius賽多利斯
德國MN
伯樂BIO-RAD
細(xì)胞庫

微流控芯片實驗步驟及濾膜的選擇

時間:2017/5/31閱讀:2789
分享:

A Three-Dimensional Origami Paper-Based Device for Potentiometric Biosensing

Materials
2-Nitrophenyl octyl ether (o-NPOE), heptakis(2,3,6-tri-o-methyl)-β-cyclodextrin
(β-CD), sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (NaTFPB), poly
(methyl methacrylate-co-butyl methacrylate), high molecular weight poly(vinyl
chloride) (PVC) were purchased from Fluka AG (Buchs, Switzerland).
Butyrylthiocholine iodide was obtained from Aladdin (Shanghai, China). Bovine
serum albumin (BSA), butyrylcholine chloride and 5,5′-dithiobis(2-nitrobenzoic acid)(DTNB) were obtained from Sigma. Butyrylcholinesterase (BuChE, 5.64 U mg-1) was purchased from Sangon (Shanghai, China). Methyl parathion (99%) was obtained
from Best Reagent (Chengdu, China). Carbon and Ag/AgCl inks (dispersed in vinisol)
were purchase from Bohui New Materials Tech. Co. Ltd (Jiangsu, China). All other
reagents used were purchased from Sinopharm Chemical Reagent and of analytical
grade purity or better. Freshly deionized water (18.2 MΩ cm specific resistance) was obtained with a Pall Cascada laboratory water system.

Membrane preparation
The butyrylcholine selective membranes contained 1.0 wt% NaTFPB, 1.0 wt% β-CD,
65.0 wt% o-NPOE and 33.0 wt% PVC.1 200 mg of the membrane components were
dissolved in 1.0 mL of THF. The reference electrode membrane cocktail was prepared
as described before with some modifications. 200 mg of the copolymer, 68.0 mg of
KCl, and 5.0 mg of ETH 500 were dispersed in 1.0 mL of THF.2 Each deposited diskmembrane had a diameter of 4 mm. ETH 500, as a kind of ionic liquid, was used to decrease the membrane resistance.

The stability of the reference membrane electrode was tested against a
commercial double-junction silver/silver chloride (3 M KCl) electrode, and an amount of 20 μL reference membrane cocktail was coated onto a silver/silver chloride ink screen-printed electrode on a ceramic substrate.

Chip fabrication
The fabrication process was performed following by our previously described
procedures.3 Briefly, a XEROX Phaser 8560DN wax inkjet printer purchased from
Fuji XEROX Company was used to pattern wax-based solid ink on the Whatman
chromatography paper (Whatman chromatography paper, GE) with highest
resolution 2400 dpi. The chip design was implemented using drawing software
(Adobe Illustrator). After printing, the paper was kept in an oven at 150 °C for 30 second to let the wax to penetrate through the paper compley to form hydrophobicwax barriers and then cooled to 20 °C. The static water contact angle was measured at room temperature by a contact angle system JGW-360B (Chengde, China).Measurements were repeated on at least three drops.

更多具體內(nèi)容請查閱文件http://m.kytsldc.cn/st122227/info_99843.html

微流控實驗濾膜選擇上海必泰生物科技有限公司銷售經(jīng)營的whatman的3001-861尺寸是20cm*20cm

會員登錄

×

請輸入賬號

請輸入密碼

=

請輸驗證碼

收藏該商鋪

X
該信息已收藏!
標(biāo)簽:
保存成功

(空格分隔,最多3個,單個標(biāo)簽最多10個字符)

常用:

提示

X
您的留言已提交成功!我們將在第一時間回復(fù)您~
撥打電話
在線留言
99亚洲精品高清一二区| 欧美大胆a级视频 一本| 裸毛片视频在线视频| 大鸡巴操逼 公司| 麻豆91精品96久久久| 大鸡巴干小逼视频| 精品麻豆国产免费一区二区三区| 白色紧身裤无码系列在线| 大香蕉尹人97超级视频| 女人被男人躁爽色欲国产| 国产精品无码av在线一区| 日本a国产精品久久久久| 老头鸡巴操老太骚逼| 大鸡巴插美女小逼逼| 黑人妖大鸡吧操逼| 亚洲大尺度无码无码专线一区| 老狼精品卡1卡2卡3网| 日本乱人伦中文在线播放| 大男人在线无码直播| 东京热无码AV一区二区三区| 中文字幕不卡一区二区免| 亚洲v国产v天堂a无码| 亚洲国产成人手机版| 久久精品伦一区二区三区| 黄色视频网在线观看| 欧美日韩国产欧美| 妺妺坐在我腿上下面好湿| 最新日本一区二区三区免费看| 一区二区三区四区五六区| 被大鸡巴操淫液视频| 美女穿黑丝被大鸡巴猛操| 大鸡巴操大屁股美女视频| 日韩人妻精品一区二区三区| 中文字幕乱码一区三区免费| 国产午夜福利视频第三区| 视频一区视频二区制服丝袜| 国产综合精品一区二区青青| 久久精品一区二区三区免费看| 在线观看日韩欧美| 鸡巴插进女人的逼里| 想被操在线啊啊啊啊|