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                                    商铺主体:上海益朗仪器有限公司
                                     主页 >> 仪器、仪表 >> 实验仪器装置

                                    美国CHEMetrics R-1402型氨填充盒


                                    美国CHEMetrics R-1402型氨填充盒

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                                    时间: 2020
                                    价格: 1990 元
                                    公司: 上海益朗仪器有限公司 (上海) 
                                    产品: 公司更多产品 | 收藏
                                    联系: 点击这里给我发消息   电话:021-69005726

                                       

                                    ·美国CHEMetrics R-1402型氨填充盒产品描述

                                    美国CHEMetrics R-1402型氨填充盒

                                    用于测试水中氨含量。例如:饮用水,清洁地表水,优质硝化废水,海水。是使用K-1420型氨测试盒中的补充品。

                                    规格参数:

                                    产品类型

                                    Ammonia — CHEMets® Refill

                                    产品型号

                                    R-1402

                                    测试方法

                                    Hydroxybenzyl Alcohol (HBA)

                                    测试次数

                                    30次/盒

                                    产品价格

                                    咨询上海益朗仪器有限公司

                                    辅助器具

                                    C-1404型氨比色板、A-1404型稳定剂溶液、A-1405型催化剂溶液、

                                    A-1406型活化剂溶液、A-0063型3mL Syringe、A-0013型25mL样品杯

                                    CHEMets® 是美国CHEMetrics的专利(专利号:3,634,038)。

                                     

                                    美国CHEMetrics 氨测试盒

                                    Visual Kits

                                    测试范围

                                    MDL

                                    测试方法

                                    测试盒货号

                                    填充盒货号

                                    0-4 & 0-80 ppm

                                    0.125 ppm

                                    Hydroxybenzyl Alcohol (HBA)

                                    K-1420

                                    R-1402

                                    0-125 & 0-2500 ppm

                                    8 ppm

                                    Hydroxybenzyl Alcohol (HBA)

                                    K-1420D

                                    R-1402D

                                    0-500 & 0-10000 ppm

                                    30 ppm

                                    Hydroxybenzyl Alcohol (HBA)

                                    K-1420B

                                    R-1402B

                                    0-1 & 1-10 ppm

                                    0.05 ppm

                                    直接奈瑟琳化方法

                                    K-1510

                                    R-1501

                                    0-30 & 30-300 ppm

                                    5 ppm

                                    直接奈瑟琳化方法

                                    K-1510D

                                    R-1501D

                                    0-60 & 60-600 ppm

                                    10 ppm

                                    直接奈瑟琳化方法

                                    K-1510A

                                    R-1501A

                                    0-120 & 120-1200 ppm

                                    20 ppm

                                    直接奈瑟琳化方法

                                    K-1510B

                                    R-1501B

                                    0-1000 & 1000-10,000 ppm

                                    100 ppm

                                    直接奈瑟琳化方法

                                    K-1510C

                                    R-1501C

                                    Instrumental Kits

                                    测试范围

                                    测试方法

                                    测试包目录

                                    0-3.00 & 0-60.0 ppm

                                    Hydroxybenzyl Alcohol (HBA)

                                    K-1413

                                    0-7.00 ppm

                                    直接奈瑟琳化方法

                                    K-1503

                                    0-14.0 ppm

                                    直接奈瑟琳化方法

                                    K-1523

                                    Methods

                                    Low-level ammonia nitrogen may be naturally present in water as a result of the biological decay of plant and animal matter. Higher concentrations in surface waters can indicate contamination from waste treatment facilities, raw sewage, industrial effluents (particularly from petroleum refineries), or fertilizer runoff. Excessive ammonia concentrations are toxic to aquatic life.

                                     

                                    The Direct Nesslerization Method

                                     

                                    Reference: ASTM D 1426-08, Ammonia Nitrogen in Water, Test Method A. APHA Standard Methods, 18th ed., Method 4500-NH3 C – 1988.

                                     

                                    The test kits employing the well-established Nessler reagent* to determine ammonia concentrations are applicable to drinking water, clean surface water, good-quality nitrified wastewater effluent, and seawater. In some waters, calcium and magnesium concentrations can cause cloudiness of the reagent. Adding a few drops of stabilizer solution (Rochelle Salt) will prevent this cloudiness. References recommend distilling samples prior to analysis. Results are expressed as ppm (mg/L) ammonia-nitrogen, NH3-N.

                                    Shelf-life: although the Nessler reagent is stable, its high alkali content attacks the glass ampoule. The resulting precipitate interferes with color comparison. We recommend stocking quantities of CHEMets® and VACUettes® ampoules that will be used within five months. A two-month supply of Vacu-vials ampoules is suggested. Refrigeration will dramatically extend the shelf-life of these products.

                                     

                                    *Contains mercury. Dis***e according to local, state or federal laws.

                                     

                                    The Hydroxybenzyl Alcohol (HBA) Method

                                     

                                    References: Krom, Michael D., Spectrophotometric Determination of Ammonia: A Study of a Modified Berthelot Reduction Using Salicylate and Dichloroisocyanurate, The Analyst, V105, pp. 305-316, 1980.

                                    In the ammonia test method that employs the Hydroxybenzyl Alcohol chemistry, free ammonia reacts with hypochlorite to form monochloramine. Monochloramine reacts with HBA, in the presence of sodium nitroferricyanide, to form a green colored complex. This test method measures the sum of free ammonia and monochloramine. Results are expressed in ppm (mg/L) ammonia-nitrogen, NH3-N.

                                     

                                    The Hydroxybenzyl Alcohol Method offers sensitivity similar to the Nesslerization Method and there is no generation of mercury-containing waste.





                                     
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                                     免责声明:以上信息 美国CHEMetrics R-1402型氨填充盒 由企业自行提供,内容的真实性和合法性由发布企业负责。
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