看了又看
| 产品名称 : | PH9271 | 钙羧酸钠盐指示剂 Calconcarboxylic acid sodium salt indicator |
| 产品品牌 : | 飞净 PHYGENE |
分子量： 460.39
本品常与氯化钠1：100的混合物被称为钙红。
用途：用作指示剂，测定钙的灵敏试剂，络合指示剂。钙指示剂在pH=12～14之间显蓝色，与Ca2+形成红色络合物，用于钙镁混合物中钙的测定，终点变色较铬黑T敏锐。在此pH值时，由于生成的氢氧化镁测定吸附钙指示剂，故应在用氢氧化钠调节酸度后再加指示剂。由于钙指示剂的水溶液或乙醇溶液都不稳定，所以通常是与干燥的NaCl混合后直接将固体加入待测溶液中使用。
Uses: Used as an indicator, sensitive reagent for determination of calcium, complexing indicator. The calcium indicator is blue in pH=12 ~ 14, and forms a red complex with Ca2+, which is used for the determination of calcium in the calcium magnesium mixture, and the end discoloration is more sensitive than that of chromium black T. At this pH value, the indicator should be added after adjusting the acidity with sodium hydroxide due to the determination of calcium adsorption indicator by the generated magnesium hydroxide. Since the aqueous solution or ethanol solution of the calcium indicator is not stable, the solid is usually mixed with dry NaCl and directly added to the solution to be tested for use.
温馨提示：1.本产品仅供科研使用。请勿用于医药、临床诊断或治疗，食品及化妆品等用途。请勿存放于普通住宅区。2.为了您的安全和健康，请穿好实验服并佩戴一次性手套和口罩操作。3.实验结果可由多种因素影响，相关处理只限于产品本身，不涉及其他赔偿。
-
PH0341 | PAGE胶促凝剂 TEMED
￥60
-
PH1793 | 瑞氏-姬姆萨/吉姆萨快速染色液 Wright-Giemsa Quick Stain Kit
￥90
-
PH0337 | 10×Tris-甘氨酸SDS电泳缓冲液 Tris Glycine SDS Running Buffer...
￥140
-
PH0996 | 10%中性固定液 / 10% Neutral Fixative
￥25
-
PH0502 | 0.25%胰蛋白酶溶液 胰酶细胞消化液（1×）不含EDTA / 0.25% Trypsin Solut...
￥80
-
PH1519 | 封闭用脱脂奶粉 Skimmed Milk Powder
￥60
-
PH1812C | PBS缓冲液 pH7.2-7.4 磷酸盐缓冲液 0.01mol/L 细胞培养级 500ML
￥90
-
PH1812 | 1×PBS缓冲液(0.01mol/L, pH7.2-7.4) 1×PBS Buffer
￥60
-
PH0403 | 10×快速转膜液 / 10×Rapid Transfer Buffer
￥200
-
PH0613 | Tris-硼酸电泳缓冲液（5×TBE Buffer）
￥100
热线电话