-
-
[查看]
-
http://cxbio.com/Article/325_1.html
-
-
本规程适用于白喉、破伤风、气性坏疽及肉毒四种精制抗毒素。
精制白喉、破伤风、气性坏疽、肉毒抗毒素系分别由各该抗毒素的马血浆经胃酶消化后用硫酸铵盐析法制得的液体或冻干抗毒素球蛋白制剂。分别用于各该疾病的预防和治疗。
1 制造
1.1对血浆的要求
1.1.1制造精制抗毒素的血浆,应符合附录1《抗毒素生产用马匹免疫方法》的规定。在保存期间如发一周明显的溶血、染菌及其他异常现象,不得投入生产。
1.1.2血浆的抗毒素效价不得低于下列[查看]
-
http://cxbio.com/Article/317_1.html
-
-
发酵已经从过去简单的生产酒精类饮料、生产醋酸和发酵面包已经发展天成为生物工程的一个重要的分支,成为一个包括了微生物学、化学工程、基因工程、细胞工程、机械工程和计算机软硬件工程的一个多学科工程。从广义上讲,发酵工程由三部分组成:是游工程,发酵工程和下游工程。其中,下游工程指从发酵液中分离和纯化产品的技术:包括固液分离技术(离心分离,过滤分离,沉淀分离等工艺),细胞破壁技术(超声、高压剪切、渗透压、表面活性剂和溶壁酶等),蛋白质纯化技术(沉淀法、色谱分离法和超滤法等)[查看]
-
http://cxbio.com/Article/316_1.html
-
-
一、目的和要求
1、 了解固定化酶及微生物细胞固定化的原理及其优缺点。
2、 掌握固定化细胞中基本、常用的方法。
3、 学会利用固定化酿酒酵母细胞进行酒精发酵。
二、原理
人们利用微生物进行发酵生产的主要目的在于利用微生物的固有酶系进行各种相关的酶促反应。当考虑到微生物细胞可将各种酶再生,并且酶在细胞内比提取出来后的稳定性更高的特点,科学家们开始了从酶的固定化研究进入了微生物细胞固定化的研究历程。
固定化酶和固定化细胞的原理是将酶或微生物细胞利用物理、化学方法,将酶或[查看]
-
http://cxbio.com/Article/315_1.html
-
-
动物细胞培养技术
最早的生物制品是采用传统的生物化学技术从动物组织获取的,如生物提取的生长激素、干扰素、疫苗及白细胞介素等。随着社会经济的发展,人类对生物制品的需求激增,传统提取的生物制品产量和质量已远远不能满足需求,于是通过大规模培养动物细胞生产生物制品便被提到议事日程上来。第一代细胞培养技术核心问题是难以产业化或者说是规模化生产,体现在工艺生产时不能大规模制备产品;非批量生产容易导致产品质量的不均一性;难以对同批产品进行生产和质量控制。随后,利用199、MEM等合成培养基[查看]
-
http://cxbio.com/Article/314_1.html
-
-
基因工程在工业上的应用
微生物发酵生产法具有许多优越性,结合基因工程手段,可实现许多美好的设想。例如,目前用100 kg胰脏只能提取3~4 g胰岛素,而用“工程菌”进行发酵生产,则只要用几升发酵液就可取得同样数量的产品。1978年美国有两个实验室合作,使大肠杆菌产生大白鼠胰岛素的研究已获成功。接着,又报道了通过基因工程使大肠杆菌合成人胰岛素实验成功的消息。1982年,我国科学工作者也利用遗传工程技术,将人工合成的脑啡肽基因移植到大肠杆菌中,[查看]
-
http://cxbio.com/Article/311_1.html
-
-
所谓细胞工程,是指以细胞为基本单位进行培养、增殖或按照人们的意愿改造细胞的某些生物学特性,从而创造新的生物和物种,以获得具有经济价值的生物产品。它主要由两部分构成,其一是上游工程,包含细胞培养、细胞遗传操作和细胞保藏三个步骤。另一个则是下游工程,是将已转化的细胞应用到生产实践中去,以生产生物产品的过程。顾名思义,植物细胞工程,当然就是针对植物细胞的细胞工程了,它是细胞工程的一个重要组成部分。
自1904年Hanning成功培养离体胚以来,[查看]
-
http://cxbio.com/Article/310_1.html
-
-
细胞培养的一般过程
一、准备工作
准备工作对开展细胞培养异常重要,工作量也较大,应给予足够的重视,推备工作中某一环节的疏忽可导致实验失败或无法进行。准备工作的内容包括器皿的清洗、干燥与消毒,培养基与其他试剂的配制、分装及灭菌,无菌室或超净台的清洁与消毒,培养箱及其他仪器的检查与调试,具体内容可参阅有关文献。
二、取材
在无菌环境下从机体取出某种组织细胞(视实验目的而定),经过一定的处理(如消化分散细胞、分[查看]
-
http://cxbio.com/Article/308_1.html
-
-
培养细胞的完全培养基由基础培养基(如MEM)和添加剂(如血清或无血清培养用的某些确定的激素及生长因子)组成,培养基的配方一直在改进,其中包括抗生素和抗有丝分裂剂等等。
一、基础培养基
绝大多数培养基是建立在平衡盐溶液(BSS)基础上,添加了氨基酸、维生素和其它与血清中浓度相似的营养物质。广泛应用的培养基是Eearle`s MEM 的混合物,其中含有13种必须氨基酸、8种维生素。而Ham`s F12[查看]
-
http://cxbio.com/Article/306_1.html
-
-
PCR产物的电泳检测时间一般为48h以内,有些应于当日电泳检测,大于48h后带型不规则甚致消失。
一.假阴性,不出现扩增条带
PCR反应的关键环节有①模板核酸的制备,②引物的质量与特异性,③酶的质量及活性 ④PCR循环条件。寻找原因亦应针对上述环节进行分析研究。
模板:①模板中含有杂蛋白质,②模板中含有Taq酶抑制剂,③模板中蛋白质没有消化除净,特别是染色体中的组蛋白,[查看]
-
http://cxbio.com/Article/303_1.html
-
-
体外诊断试剂原料系列新品推荐:包括糖化血红蛋白,N-乙酰-D-氨基葡萄糖苷酶,CNP-NAG,α-L-岩藻糖苷酶,CNP-AFU,2-氯-4-硝基苯基-α-L-岩藻糖苷,M-G-CNP-AFU,甘氨酰脯氨酸二肽氨基肽酶,GPDA,亮氨酸氨基肽酶,脯氨酸肽酶,血管紧张素转化酶,胱抑素C[查看]
-
http://cxbio.com/Article/twzdsjylxlxptj_1.html
-
-
西宝生物科技(上海)股份有限公司(前身API Inc.成立于1999年),于2003年迁至上海更名成立,并已取得“西宝”注册商标。公司开展有进出口和国内业务,国内业务专注于诊断试剂、疫苗等生产企业提供生产原料和试剂,同时提供生命科学领域的试剂、仪器、耗材等。
在迎龙年之际,诊断试剂生产原料、试剂、酶等火热促销中,国内现货
货号
品名
促销价
大包装
纯度/备[查看]
-
http://cxbio.com/Article/299_1.html
-
-
西宝生物科技(上海)股份有限公司专注于为临床诊断试剂,疫苗等生物制品生产企业提供生产用原料和试剂,同时提供生命科学领域用试剂,耗材,仪器等。
在辞旧迎新之际,培养基火热促销中,国内现货。
日本Nissui培养基
货号
中文名
英文
保存条件和保质[查看]
-
http://cxbio.com/Article/297_1.html
-
-
西宝生物参加CPhI India 2011[查看]
-
http://cxbio.com/Article/cphi_india2011_1.html
-
-
神经酸 Nervonic acid
-
-
N,N,N,N-四甲基乙二胺 N,N,N,N-Tetramethylethylenediamine
-
-
N,N-亚甲基双丙烯酰胺 N,N-Methylenebisacrylamide
-
-
2-AB Labeled N-Glycans 2-AB标记N-多糖
-
-
2-AA标记N-多糖 2-AA Labeled N-Glycans
-
-
APTS Labeled N-Glycans APTS标记N-多糖
-
-
Unlabeled N-Glycans 未标记N-多糖
-
-
Permethylated N-Glycan standards 全甲基化N-多糖标准品
-
-
正丁基硫代磷酰三胺 NBPT
-
-
Rat NGAL ELISA Kit, 大鼠NGAL酶联免疫试剂盒
-
-
Lacto-N-neotetraose / LNnT / neo-LNT linked to BSA
-
-
Lacto-N-neotetraose / LNnT / neo-LNT
-
-
NPC酯-聚乙二醇-NPC酯 Nitrophenyl Carbonate-PEG-Nitrophenyl Carbonate
-
-
Silica gel 60N, irregular neutral, particle size 63‐200um,柱色谱用
-
-
羧甲基纤维素钠|Carboxymethyl cellulose sodium salt|CMC Na (货号:117221)
-
-
二丁酰环磷腺苷钙 N6,2'-O-双丁酰基腺嘌呤-3',5'-环磷酸钙核苷
-
-
丙谷二肽 / N(2)-L-丙氨酰-L-谷氨酰胺
-
-
丙谷二肽, N(2)-L-丙氨酰-L-谷氨酰胺
-
-
丙谷二肽 N(2)-L-丙氨酰-L-谷氨酰胺
-
-
NNN, rac N’-Nitrosonornicotine
-
-
NNPA, N’-Nitrosopentyl -(3-picolyl)amine
-
-
0.5mol/l Sodium Nitrite Solution
-
-
Mercury (ll) Nitrate 0.005M 0.01N
-
-
Mercury (ll) Nitrate 0.01N 0.005M
-
-
Mercury (II) Nitrate 0.02N 0.01M
-
-
Mercury (II) Nitrate 0.02N 0.01M
-
-
Mercury (I) Nitrate 0.1N 0.1M
-
-
Mercury (I) Nitrate 0.1N 0.1M
-
-
Silver Nitrate 0.01N
-
-
Silver Nitrate 0.0141N 0.0141M
-
-
Silver Nitrate 0.02N 0.02M
-
-
Silver Nitrate 0.02N 0.02M
-
-
Silver Nitrate 0.025N 0.025M
-
-
Silver Nitrate 0.0282N 0.0282M
-
-
Silver Nitrate 0.04N 0.04M
-
-
Silver Nitrate 0.04N 0.04M
-
-
Silver Nitrate 0.05N (0.05M)
-
-
Silver Nitrate 0.05N (0.05M)
-
-
Silver Nitrate 0.085N 0.085M
-
-
Silver Nitrate 0.1N 0.1M
-
-
Silver Nitrate 0.05N (0.05M)
-
-
Silver Nitrate 0.05N (0.05M)
-
-
Silver Nitrate 0.05N (0.05M)
-
-
Silver Nitrate 0.1709N 0.1709M
-
-
Silver Nitrate 0.1709N 0.1709M
-
-
Silver Nitrate 1.0N 1.0M
-
-
Silver Nitrate 1.0N 1.0M
-
-
Silver Nitrate 1.0N 1.0M
-
-
Sodium Nitrite 0.5M
-
-
Sodium Nitrite 0.5N 0.5M
-
-
Sodium Nitrite 0.5N 0.5M
-
-
Silver Nitrate 0.0282N (0.0282M)
-
-
Silver Nitrate 0.1N (0.1M)
-
-
Lead Nitrate 0.01M (0.02N)
-
-
Lead Nitrate 0.1M (0.2N)
-
-
Lead (II) Nitrate 1.0N (0.5M)
-
-
Lead (II) Nitrate 1.0N (0.5M)
-
-
Crystal Violet Indicator, 0.1% (w/v) in Glacial Acetic Acid, for Nonaqueous Titrations
-
-
Crystal Violet Indicator, 0.2% (w/v) in Glacial Acetic Acid, for Nonaqueous Titrations
-
-
TDS Standard 1382 ppm NaCl @25℃
-
-
Double junction bridge sol; 10% w/v Potassium Nitrate
-
-
Silver 5M NaNO3
-
-
Bromide 5M NaNO3
-
-
Cadmium 5M NaNO3
-
-
Chloride 5M NaNO3
-
-
Copper 5M NaNO3
-
-
Mercury 5M NaNO3
-
-
Iodide 5M NaNO3
-
-
Potassium 5M NaCl
-
-
Lead 2.5M NaNO3
-
-
thiocyanate 5M NaNO3
-
-
Nitrate 1000ppm as NO3
-
-
Ammonia 100ppm as N
-
-
Ammonium 10ppm as NH4
-
-
Ammonium 1000ppm as NH4
-
-
Ammonia 1000ppm as N
-
-
Ammonia 1000ppm as N
-
-
Nitrogen Oxide 1000ppm as NO2
-
-
0.2w/v% p- Naphtholbenzein Acetic Acid Solution
-
-
Total Base Number TBN Standard: 1.0 mg/g KOH
-
-
Total Base Number TBN Standard: 10 mg/g KOH
-
-
Total Base Number TBN Standard: 15 mg/g KOH
-
-
Total Base Number TBN Standard: 3.0 mg/g KOH
-
-
Total Base Number TBN Standard: 30 mg/g KOH
-
-
Total Base Number TBN Standard: 40 mg/g KOH
-
-
Total Base Number TBN Standard: 6.0 mg/g KOH
-
-
Total Base Number TBN Standard: 70 mg/g KOH
-
-
Polyethylene Cap For NMR Test Tube
-
-
Polyethylene Cap For NMR Test Tube
-
-
Polyethylene Cap For NMR Test Tube
-
-
Polyethylene Cap For NMR Test Tube
-
-
Polyethylene Cap For NMR Test Tube
-
-
5,5-Dimethyl-4-phenyl-l-pyrroline N -Oxide [4PDMPO]
-
-
N-(Dithiocarboxy)sarcosine Disodium Salt Dihydrate (DTCS Na)
-
-
N-(Dithiocarboxy)sarcosine Disodium Salt Dihydrate (DTCS Na)
-
-
5,5-Dimethyl-l-pyrroline N-Oxide
-
-
5,5-Dimethyl-l-pyrroline N-Oxide
-
-
Ammonium N,N-Diethyldithiocarbamate
-
-
Magnesium Nitrate Solution(10mg Mg/ml 15% Nitric Acid Solution)
-
-
Nickel(II) Nitrate Solution (10mg Ni/ml 15% Nitric Acid Solution)
-
-
Palladium(II) Nitrate Solution
-
-
Sodium N,N-Diethyldithiocarbamate Trihydrate
-
-
Sodium N,N-Diethyldithiocarbamate Trihydrate
-
-
Palladium nitrate
-
-
Palladium nitrate
-
-
Ammonium nitrate
-
-
Ammonium Nitrate
-
-
Calcium nitrate
-
-
Calcium nitrate
-
-
Lanthanum nitrate
-
-
Lanthanum nitrate
-
-
Magnesium nitrate
-
-
Magnesium nitrate
-
-
Nickel nitrate
-
-
Nickel nitrate
-
-
Palladium nitrate
-
-
Palladium nitrate
-
-
Palladium nitrate
-
-
Palladium nitrate
-
-
Standard-Li 250ppm, K 10,000ppm & Na 1,000ppm in 2% HNO3
-
-
Standard-Al 100ppm, Ba 100ppm, B 100ppm, K 1,000ppm, Si 500ppm, Ag 50ppm & Na 10
-
-
Iron1 00ug/mL N 2-5% HNO3
-
-
Molybdenum 2% NH4OH (v/v) 100ug/mL
-
-
Molybdenum 2% NH4OH (v/v) 10000ug/mL
-
-
Solution, Na2SiO3, H2O, 1000mg/l
-
-
Tungsten 2% NH4OH (v/v) 1000ug/mL
-
-
Tungsten 2% NH4OH (v/v) 10000ug/mL
-
-
Calibration Standard 10 Elements in Hydrochloric (tr. Nitric Acid)
-
-
Calibration Standard 10 Elements in Hydrochloric (tr. Nitric Acid)
-
-
Calibration Standard 16 Elements in Nitric Acid (tr. Hydrofluoric Acid)
-
-
Calibration Standard 4 Elements in Nitric Acid (tr. Hydrofluoric Acid)
-
-
Tuning Standard 9 Elements in Hydrochloric (tr. Nitric Acid)
-
-
Standard in 2% nitric acid
-
-
Stray Light Inorganic Cut-off filter (390nm)Sodium Nitrite
-
-
Stray Light Inorganic Cut-off filter (390nm) Sodium Nitrite
-
-
0.25 mg/L C NIST Sucrose Calibration Standard
-
-
0.5 mg/L C from NIST Sucrose Calibration Standard
-
-
0.75 mg/L C from NIST Sucrose Calibration Standard
-
-
Calibration Kit;Blank, 0.25 mg/L C NIST Sucrose, 0.5 mg/L C NIST Sucrose,0.75 mg/L C NIST Sucrose
-
-
Calibration Standard 0.25 mg/L C NIST Sucrose
-
-
Calibration Standard 0.25 mg/L C NIST Sucrose
-
-
Calibration Standard 0.25 mg/L C NIST Sucrose
-
-
Calibration Standard 0.25 mg/L C NIST Sucrose
-
-
Calibration Standard 0.5 mg/L C NIST Sucrose
-
-
Calibration Standard 0.5 mg/L C NIST Sucrose
-
-
Calibration Standard 0.5 mg/L C NIST Sucrose
-
-
Calibration Standard 0.5 mg/L C NIST Sucrose
-
-
Calibration Standard 0.75 mg/L C NIST Sucrose
-
-
Calibration Standard 0.75 mg/L C NIST Sucrose
-
-
Validation Kit for TOC contains a blank and 2 x 100mg/l C NIST KHP. 125mL Bottles
-
-
Validation Kit for TOC contains a blank and 2 x 10mg/l C NIST KHP. 125mL Bottles
-
-
Validation Kit for Wet Chemistry TOC contains 3 x blanks, 2 x 0.5mg/L C NIST KHP,1mg/L NIST KHP.
-
-
Calibration Kit;2 x blank,2 x 0.1 mg/L,2 x 0.25 mg/L, 2 x 0.5 mg/L,0.75 mg/L,1 mg/L C NIST KHP
-
-
Calibration Standard 0.75 mg/L C NIST Sucrose
-
-
Calibration Standard 0.75 mg/L C NIST Sucrose
-
-
Calibration Standard 0.25 mg/L C NIST Sucrose
-
-
Calibration Standard 0.5 mg/L C NIST Sucrose
-
-
Calibration Standard 1.25 mg/L C NIST Sucrose
-
-
Calibration Standard 1.25 mg/L C NIST Sucrose
-
-
Calibration Standard 0.1 mg/L C NIST KHP
-
-
Calibration Standard 0.25 mg/L C NIST KHP
-
-
Calibration Standard 0.25 mg/L C NIST KHP
-
-
Calibration Standard 0.25 mg/L C NIST KHP
-
-
Calibration Standard 0.25 mg/L C NIST KHP
-
-
Calibration Standard 0.5 mg/L C NIST KHP
-
-
Calibration Standard 0.5 mg/L C NIST KHP
-
-
Calibration Standard 0.5 mg/L C NIST KHP
-
-
Calibration Standard 0.5 mg/L C NIST KHP
-
-
Calibration Standard 0.5 mg/L C NIST KHP
-
-
Calibration Standard 0.75 mg/L C NIST KHP
-
-
Calibration Standard 1mg/L NIST KHP
-
-
Calibration Standard 1mg/L NIST KHP
-
-
Calibration Standard 1mg/L NIST KHP
-
-
Calibration Standard 1mg/L NIST KHP
-
-
Calibration Standard 1mg/L NIST KHP
-
-
Calibration Standard 5mg/L NIST KHP
-
-
Calibration Standard 5mg/L NIST KHP
-
-
Calibration Standard 10mg/L NIST KHP
-
-
Calibration Standard 10mg/L NIST KHP
-
-
Calibration Standard 25mg/L NIST KHP
-
-
Calibration Standard 25mg/L NIST KHP
-
-
Calibration Standard 50 mg/L C NIST KHP
-
-
Calibration Standard 50 mg/L C NIST KHP
-
-
Calibration Standard 1000 mg/L C NIST Sucrose
-
-
System Suitability USP Set;2 x H2O,0.5 mg/L C Sucrose,0.5 mg/L C,C6H4O2,0.25 mg/L C NIST Sucrose
-
-
Calibration Standard 0.25 mg/L C NIST Sucrose
-
-
Calibration Standard 0.5 mg/L C NIST Sucrose
-
-
Calibration Standard 0.75 mg/L C NIST Sucrose
-
-
Validation Set;2 x Blanks,0.25,0.5,0.75 mg/L C NIST Sucrose.
-
-
Calibration Kit;Blank, 0.25 mg/L C NIST Sucrose,0.5 mg/L C NIST Sucrose,0.75 mg/L C NIST Sucrose.
-
-
Validation Kit, 2 x Blanks and 0.5 mg/L C NIST Sucrose. 60ml Bottles
-
-
Validation Kit, Blank and 0.5 mg/L C NIST Sucrose. 60ml Bottles
-
-
Validation Kit, 2 x Blanks and 0.5 mg/L C NIST Sucrose. 60ml Bottles
-
-
TIC Standard 0.5mg/L as Na2CO3
-
-
TIC Standard 1.0mg/L as Na2CO3
-
-
TIC Standard 1.5mg/L as Na2CO3
-
-
TIC Standard 2mg/L as Na2CO3
-
-
TIC Standard 5mg/L as Na2CO3
-
-
TIC Standard 10mg/L as Na2CO3
-
-
TIC Standard 25mg/L as Na2CO3
-
-
TIC Standard 50mg/L as Na2CO3
-
-
TIC Standard 4mg/L as Na2CO3
-
-
TOC Standard 50mg/L C as Nicotinamide
-
-
TOC Standard 0.5mg/L C as Nicotinamide
-
-
Nitrate Nitrogen Standard Solution [NO3- (as N):1,000ppm]
-
-
Nitrite NaNO2 H2O 1000mg/L
-
-
Multi Element Standard in H2O / Tr HNO3 Na 200ppm K 10ppm Mg 2ppm
-
-
Fine Silicon Nitride Powder for Fine Ceramics (Direct Nitridation) I
-
-
Polystyrene Latex Nanoparticle, 120 nm
-
-
Fine Silicon Nitride Powder for Fine Ceramics (Direct Nitridation)II
-
-
Poly(ethylene glycol) Nonylphenyl Ether
-
-
High Nickel Alloy for EPMA
-
-
Reference Thin Film for Heat Diffusion Time Across a Thickness(Titanium Nitride Thinfilm/Synthetic Quartz Substrate)
-
-
Fine Silicon Nitride Powder for Fine Ceramics (Liquid InterfaClal Reaction)
-
-
Fe- Ni alloy Reference Material Set (Ni 5%, 10%, 20%, 40%, 60% )
-
-
O-(3,5,5-Trimethyl-l-hexyl) ninhydrin
-
-
O-(3,5,5-Trimethyl-l-hexyl) ninhydrin
-
-
O-(3,5,5-Trimethyl-l-hexyl) ninhydrin
-
-
Curcumin, Natural
-
-
Silver N, N-diethyldithiocarbamate
-
-
Silver N, N-diethyldithiocarbamate
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution Nitrite
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Nitrite
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Nitrite
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Nitrite
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
N, N-Dimethylaceatamide
-
-
N, N-Dimethylaceatamide
-
-
N. N-Dimethylformamide
-
-
N. N-Dimethylformamide
-
-
Silver Nitrate, AgNO, 0.25M
-
-
Mercuric Nitrate 0.00705M
-
-
rac N-亚硝基降烟碱 (NNN) D4
-
-
8.5% v/v Ethanol/Water - nominal density 0.9883g/ml
-
-
10% v/v Ethanol/Water - nominal density 0.9865g/ml
-
-
11% v/v Ethanol/Water - nominal density 0.9853g/ml
-
-
12% v/v Ethanol/Water - nominal density 0.9891g/ml
-
-
13.5% v/v Ethanol/Water - nominal density 0.9824g/ml
-
-
14% v/v Ethanol/Water - nominal density 0.9868g/ml
-
-
16% v/v Ethanol/Water - nominal density 0.9795g/ml
-
-
20% v/v Ethanol/Water - nominal density 0.9753g/ml
-
-
Fehlings Solution No. 1
-
-
Fehlings Solution No. 2
-
-
Iodine N/64, 0.03125M
-
-
Electrode Filling Solution Double junction bridge sol; 10% w/v Potassium Nitrate
-
-
Sodium Hydroxide, NaOH, 2% w/v
-
-
酸性橙6 NaCl ( 工业级)
-
-
CSK栎准溶液硝酸盐(含3.05%NaCl, N:40.00ug atom/L)
-
-
CSK标准溶液硝酸盐(含3.05%NaCl, N:0.00ug atom/L)
-
-
CSK标准溶液硝酸盐(含3.05%NaCl, N:10.00ug atom/L)
-
-
浊度标准液Non Ratio 0.0 NTU
-
-
浊度标准液Non Ratio 0.0 NTU
-
-
浊度标准液Non Ratio 0.1 NTU
-
-
浊度标准液Non Ratio 0.1 NTU
-
-
浊度标准液Non Ratio 0.2 NTU
-
-
浊度标准液Non Ratio 0.2 NTU
-
-
浊度标准液Non Ratio 0.5 NTU
-
-
浊度标准液Non Ratio 0.5 NTU
-
-
浊度标准液Non Ratio 1000 NTU
-
-
浊度标准液Non Ratio 1000 NTU
-
-
浊度标准液Non Ratio 100 NTU
-
-
浊度标准液Non Ratio 100 NTU
-
-
浊度标准液Non Ratio 10 NTU
-
-
浊度标准液Non Ratio 10 NTU
-
-
浊度标准液Non Ratio 1 NTU
-
-
浊度标准液Non Ratio 1 NTU
-
-
浊度标准液Non Ratio 200 NTU
-
-
浊度标准液Non Ratio 200 NTU
-
-
浊度标准液Non Ratio 20 NTU
-
-
浊度标准液Non Ratio 20 NTU
-
-
浊度标准液Non Ratio 2 NTU
-
-
浊度标准液Non Ratio 2 NTU
-
-
浊度标准液Non Ratio 4000 NTU
-
-
浊度标准液Non Ratio 4000 NTU
-
-
浊度标准液Non Ratio 400 NTU
-
-
浊度标准液Non Ratio 400 NTU
-
-
浊度标准液Non Ratio 40 NTU
-
-
浊度标准液Non Ratio 40 NTU
-
-
浊度标准液Non Ratio 500 NTU
-
-
浊度标准液Non Ratio 500 NTU
-
-
浊度标准液Non Ratio 50 NTU
-
-
浊度标准液Non Ratio 50 NTU
-
-
浊度标准液Non Ratio 5 NTU
-
-
浊度标准液Non Ratio 5 NTU
-
-
浊度标准液Non Ratio 60 NTU
-
-
浊度标准液Non Ratio 60 NTU
-
-
浊度标准液Non Ratio 800 NTU
-
-
浊度标准液Non Ratio 800 NTU
-
-
浊度标准液Ratio 0.1 NTU
-
-
浊度标准液Ratio 0.1 NTU
-
-
浊度标准液Ratio 0.2 NTU
-
-
浊度标准液Ratio 0.2 NTU
-
-
浊度标准液Ratio 0.4 NTU
-
-
浊度标准液Ratio 0.4 NTU
-
-
浊度标准液Ratio 0.5 NTU
-
-
浊度标准液Ratio 0.5 NTU
-
-
浊度标准液Ratio 0.0 NTU
-
-
浊度标准液Ratio 0.0 NTU
-
-
浊度标准液Ratio 1000 NTU
-
-
浊度标准液Ratio 1000 NTU
-
-
浊度标准液Ratio 100 NTU
-
-
浊度标准液Ratio 100 NTU
-
-
浊度标准液Ratio 10 NTU
-
-
浊度标准液Ratio 10 NTU
-
-
浊度标准液Ratio 1 NTU
-
-
浊度标准液Ratio 1 NTU
-
-
浊度标准液Ratio 20 NTU
-
-
浊度标准液Ratio 20 NTU
-
-
浊度标准液Ratio 2 NTU
-
-
浊度标准液Ratio 2 NTU
-
-
浊度标准液Ratio 4000 NTU
-
-
浊度标准液Ratio 4000 NTU
-
-
浊度标准液Ratio 400 NTU
-
-
浊度标准液Ratio 400 NTU
-
-
浊度标准液Ratio 40 NTU
-
-
浊度标准液Ratio 40 NTU
-
-
浊度标准液Ratio 4 NTU
-
-
浊度标准液Ratio 4 NTU
-
-
浊度标准液Ratio 500 NTU
-
-
浊度标准液Ratio 500 NTU
-
-
浊度标准液Ratio 50 NTU
-
-
浊度标准液Ratio 50 NTU
-
-
浊度标准液Ratio 5 NTU
-
-
浊度标准液Ratio 5 NTU
-
-
浊度标准液Ratio 90 NTU
-
-
浊度标准液Ratio 90 NTU
-
-
Tergitol(R) NP-9 (NPE)
-
-
黄瓜专用杀菌剂 N28
-
-
Zwittergent 3-14,zwitterionic detergent, powder, N-Tetradecyl-N,N-dimethyl-3-ammonio-1-propane-sulfonate
-
-
湿润剂 NP-40,乙基苯基聚乙二醇
-
-
Purine Nucleoside Phosphorylase
-
-
N-乙基- N-(3-磺丙基)-3-甲氧基苯胺,钠盐,一水合物, CAS号 82611-88-9
-
-
铬黑T, Black T, CAS No. 1787-61-7
-
-
Eriochrome Blue Black R,铬蓝黑R | CAS No. 2538-85-4
-
-
曙红Y(醇溶) CAS No.:15086-94-9, Eosin Y alcohol solution
-
-
镍试剂 丁二酮肟 | CAS No.: 95-45-4
-
-
砷试剂 ;二乙基二硫代氨基甲酸银 | CAS No.:1470-61-7
-
-
铜试剂 ;二乙基二硫代氨基甲酸钠盐 | CAS No.: 20624-25-3
-
-
抗 2019-nCov N蛋白鼠单克隆抗体(包被)
-
-
抗 2019-nCov N蛋白鼠单克隆抗体(标记)
-
-
重组2019-nCoV N蛋白(全长)
-
-
2019-nCoV N蛋白抗体(包被、标记)
-
-
Cholesterol Oxidase,from Nocardia erythropolis, lyophilizate
-
-
Cholesterol Oxidase,from Nocardia erythropolis, solution
-
-
Glucose Oxidase (GOD), Grade I,from Aspergillus niger overproducer, lyophilizate
-
-
Glucose Oxidase (GOD), Grade II,from Aspergillus niger overproducer, lyophilizate
-
-
Glucose Oxidase (GOD), chemically modified,from Aspergillus niger overproducer, lyophilizate
-
-
Glucose Oxidase Amano NA
-
-
灭幼脲,10 ng/ul 于乙腈
-
-
氧氯丹,100 ng/ul 于环己烷
-
-
噻苯哒唑 NH D6
-
-
高效异丙甲草胺 NOA 413173
-
-
N,N-Dimethyldithiocarbamate nickel salt
-
-
USP Solution Acetic Acid 2.00 Normal Conforms to USP 34
-
-
USP Solution Acetic Acid 2.00 Normal Conforms to USP 34
-
-
USP Solution Barium Nitrate TS Conforms to USP 34
-
-
USP Solution Barium Nitrate TS Conforms to USP 34
-
-
USP Solution Bromate-Bromide Solution 0.100 Normal Conforms to USP 34
-
-
USP Solution Bromate-Bromide Solution 0.100 Normal Conforms to USP 34
-
-
USP Solution Hydrochloric Acid 1.00 Normal Conforms to USP 34
-
-
USP Solution Hydrochloric Acid 1.00 Normal Conforms to USP 34
-
-
USP Solution Iodine (Iodine-Iodide) 0.100 Normal Conforms to USP 34
-
-
USP Solution Iodine (Iodine-Iodide) 0.100 Normal Conforms to USP 34
-
-
USP Solution Neutral Red TS Conforms to USP 34
-
-
USP Solution Neutral Red TS Conforms to USP 34
-
-
USP Solution Perchloric Acid 0.100 Normal Conforms to USP 34
-
-
USP Solution Perchloric Acid 0.100 Normal Conforms to USP 34
-
-
USP Solution Potassium Permanganate 0.100 Normal ) Conforms to USP 34
-
-
USP Solution Potassium Permanganate 0.100 Normal ) Conforms to USP 34
-
-
USP Solution Silver Nitrate 0.100 Normal Conforms to USP 34
-
-
USP Solution Silver Nitrate 0.100 Normal Conforms to USP 36
-
-
USP Solution Sodium Hydroxide 1.00 Normal Conforms to USP 34
-
-
USP Solution Sodium Hydroxide 1.00 Normal Conforms to USP 34
-
-
USP Solution Sodium Thiosulfate 0.100 Normal (N/10) Conforms to USP 34
-
-
USP Solution Sodium Thiosulfate 0.100 Normal (N/10) Conforms to USP 34
-
-
USP Solution Sulfuric Acid 1.00 Normal Conforms to USP 34
-
-
USP Solution Sulfuric Acid 1.00 Normal Conforms to USP 34
-
-
European Pharmacopoeia Reagent Lanthanum Nitrate Solution
-
-
European Pharmacopoeia Reagent Naphtolbenzein Solution
-
-
European Pharmacopoeia Reagent Nile blue A Solution
-
-
European Pharmacopoeia Reagent Ninhydrin Solution
-
-
European Pharmacopoeia Reagent Ninhydrin Solution R1
-
-
European Pharmacopoeia Reagent Ninhydrin Solution R2
-
-
European Pharmacopoeia Reagent Nitric acid, dilute
-
-
European Pharmacopoeia Reagent Silver Nitrate Solution R1
-
-
European Pharmacopoeia Reagent Silver Nitrate Solution R2
-
-
European Pharmacopoeia Reagent 0.1M Ammonium and cerium Nitrate
-
-
European Pharmacopoeia Reagent 0.01M Ammonium and cerium Nitrate
-
-
European Pharmacopoeia Reagent 0.1M Lead Nitrate
-
-
European Pharmacopoeia Reagent 0.02M Mercuric Nitrate
-
-
European Pharmacopoeia Reagent 0.1M Silver Nitrate
-
-
European Pharmacopoeia Reagent 0.1M Sodium nitrite
-
-
European Pharmacopoeia Reagent 0.001M Silver Nitrate
-
-
European Pharmacopoeia Reagent Concentrate to make Ammonium Standard sol (100ppm NH4)
-
-
Concentrate to make Ammonium Standard Solution (1ppm NH4)
-
-
European Pharmacopoeia Reagent Concentrated to make Nickel Solution (10ppm Ni)
-
-
European Pharmacopoeia Reagent Concentrated to make Nitrate sol. (100ppm NO3)
-
-
European Pharmacopoeia Reagent conc. to make Nitrate Standard Solution (2ppm NO3)
-
-
European Pharmacopoeia Reagent Concentrated to make Sodium Standard sol (200ppm Na)
-
-
非饮用水-阴离子表面活性剂 (亚甲蓝活性物质,MBAs) 能力验证样品 NPW PT -MBAs
-
-
非饮用水-碱性和中性半挥发性有机物能力验证 样品 NPW PT -Base/Neutrals
-
-
Wakopak Navi C18-5硅胶柱(235-60531)
-
-
Wakopak Navi C18-5硅胶柱(231-60533)