品牌:Microessentiallab 报价:¥950.00 商品描述 Peracetic Acid (PAA) test strip 0-160 PPM 微信号 15221999938 联系我们 上海金畔生物科技有限公司 电话:021-50837765 手机:15221999938 网址: www.jinpanbio.com Email:sales@jinpanbio.com 服务热线
Chitodecaose 10HCl CHITODECAOSE 10HCL Chitopentaose Hydrochloride 壳五糖 35061-50-7 Chitosan oligomer (Dp 3-7) - Molecular weight 1000 壳聚糖低聚物(DP 3-7) - 分子量1000 Chondroitin disaccharide 4S sodium salt 软骨素二糖4S钠盐 Chondroitin disaccharide di-6S 2-(乙酰氨基)-2-脱氧-3-O...
5.2.3 试剂和溶液 盐酸[7647-01-0]盐酸标准滴定溶液: c(HCl)=0.1mol/L。 无水乙醇[64-17-5]。 溴酚蓝指示液:0.4g/L。 5.2.4 测定步骤 称取 0.2g(称准至 0.0002g)试样,置于 250mL三角瓶中,然后加入 50mL无水乙醇,在电热板上 煮沸至溶解,冷却至室温,加入 3~4滴溴酚蓝指示液,用 0.1mol/L盐酸...
采用热蒸镀的方法直接在多孔氧化铝(porous anodic alumina,PAA)模板上蒸镀几微米的银膜,然后在HCl溶液中溶解掉模板,得到表面具有纳米尺度规则结构的银膜作为表面增强拉曼散射(surface-en-hanced Raman spectra,SERS)基底,并在该基底上测量了吡啶溶液(0.01 mol.L-1)的增强拉曼光谱,发现平均增强因子大于105.与直接在...
First Sensor HCLA12X5EUMayr 4000021 RN2 Reibbelag 1;2Vahle 0254890/00Roehm GmbH 362083Metrel TL410 CODE:1.10.140Phoenix VC-EW 1,6 - 1884869heidenhain ND2104G TTL ID:665408-07EMHART M066 909KOBOLD REG-2106Ddynaset HPW 800 / 30 - 140heidenhain LC 183 1740mm ID:557679-38Buschjost ...
(oralkali)catalystmorphologies were showedthat withsmoothsurface Si02 Si02nanoshperes investigated.Results canbeobtainedinIL/WandBCmicroemulsionHCIascatalyst.Especially, using withsmall bondedtolargesphericalparticles compositeparticles sphericalparticles wereobtainedin concentrationofHCl. higher behaviorofbmimPF6/...
(3)ph值对pb2+和cd2+的吸附影响:硝酸铅(或硝酸镉)溶液在3.0-7.0的ph范围内(通过0.1mhcl和naoh溶液调节),使用相同的实验条件、固定吸附剂用量不变,在固定时间间隔取样,静置片刻后取上清液稀释一定倍数做原子吸收测试溶液中pb2+(或cd2+)浓度。 (4)初始浓度对pb2+和cd2+的吸附影响:硝酸铅(或硝酸镉)溶液(150-...
图7 Fe。O。溶解量与盐酸浸泡时间的关系 7 ofdissolvedamount of nan- FigRelationship Fe3q withtimeinHCl oparticles 4 结论 Temperature/℃ 图5 磁性复合微球的TGA曲线 经过油酸钠处理的Fe,q小颗粒,能均匀地分散 TGAcurves 5 of Fig magneticcompositemicrospheres 3.4磁性复合微球的磁响应性 o.含量在42%--...
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Then, 100 µL of PAA solution was first added to another 5 mL of buffer solutions (pH = 6.0) with 0.5 mmol EDC·HCl solutions. After this solution was sonicated for 10 min, 0.5 mmol of NHS solutions were added under ultrasound for another 30 min. Ten milligrams of above APTES-...