BES
目录号 : GC67469
BES 是一种标准生化缓冲液，有效 pH 范围是 6.4 至 7.8 (pKa: 7.15, 20 ℃)。BES 可用于诊断检测领域。
Cas No.:10191-18-1
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
BES is a secondary standard biochemical buffer with effective pH range of 6.4 to 7.8 (pKa: 7.15 at 20). BES is used in the diagnostic testing area.
| Cas No. | 10191-18-1 | SDF | Download SDF |
| 分子式 | C6H15NO5S | 分子量 | 213.25 |
| 溶解度 | 储存条件 | 4°C, protect from light | |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 4.6893 mL | 23.4467 mL | 46.8933 mL |
| 5 mM | 0.9379 mL | 4.6893 mL | 9.3787 mL |
| 10 mM | 0.4689 mL | 2.3447 mL | 4.6893 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Ammonia/ammonium removal/recovery from wastewaters using bioelectrochemical systems (BES): A review
Bioresour Technol 2022 Nov;363:127927.PMID:36096326DOI:10.1016/j.biortech.2022.127927.
This review updates the current research efforts on using BES to recover NH3/NH4+, highlighting the novel configurations and introducing the working principles and the applications of microbial fuel cell (MFC), microbial electrolysis cell (MEC), microbial desalination cell (MDC), and microbial electrosynthesis cell (MESC) for NH3/NH4+ removal/recovery. However, commonly studied BES processes for NH3/NH4+ removal/recovery are energy intensive with external aeration needed for NH3 stripping being the largest energy input. In such a process bipolar membranes used for yielding a local alkaline pool recovering NH3 is not cost-effective. This gives a chance to microbial electrosynthesis which turned out to be a potential alternative option to approach circular bioeconomy. Furtherly, the reactor volume and NH3/NH4+ removal/recovery efficiency has a weakly positive correlation, indicating that there might be other factors controlling the reactor performance that are yet to be investigated.
Bio-electrochemical system (BES) as an innovative approach for sustainable waste management in petroleum industry
Bioresour Technol 2018 Oct;265:506-518.PMID:29886049DOI:10.1016/j.biortech.2018.02.059.
Petroleum industry is one of the largest and fast growing industries due to the ever increasing global energy demands. Petroleum refinery produces huge quantities of wastes like oily sludge, wastewater, volatile organic compounds, waste catalyst, heavy metals, etc., because of its high capacity and continuous operation of many units. Major challenge to this industry is to manage the huge quantities of waste generated from different processes due to the complexity of waste as well as changing stringent environmental regulations. To decrease the energy loss for treatment and also to conserve the energy stored in the chemical bonds of these waste organics, bio-electrochemical system (BES) may be an efficient tool that reduce the economics of waste disposal by transforming the waste into energy pool. The present review discusses about the feasibility of using BES as a potential option for harnessing energy from different waste generated from petroleum refineries.
Biomonitoring Equivalents (BES) for tetrabromobisphenol A
Regul Toxicol Pharmacol 2019 Mar;102:108-114.PMID:30593853DOI:10.1016/j.yrtph.2018.12.014.
Tetrabromobisphenol A (TBBPA) is a flame retardant used in a variety of products, including epoxy and polycarbonate resins. Relevant exposure to TBBPA has been assessed by measuring TBBPA in the blood of humans. Here, we derive Biomonitoring Equivalents (BES) for TBBPA to interpret these, and future biomonitoring results for TBBPA in humans. The available toxicity risk values (TRVs) for TBBPA were all based on toxicology studies in rats. Several studies have been conducted in which TBBPA in blood of rats were measured following controlled oral doses of TBBPA. These data provide a robust relationship from which to derive BES. BES of 5.6 and 13.0 μg total TBBPA/L plasma were calculated for available cancer and non-cancer TRVs, respectively. Several studies have measured TBBPA in serum, with median concentrations less than 0.1 μg/L, indicating considerable margins of safety (MOS) for TBBPA based on the currently available biomonitoring studies.
Balanced electrolyte solutions versus isotonic saline in adult patients with diabetic ketoacidosis: A systematic review and meta-analysis
Heart Lung 2022 Jul-Aug;54:74-79.PMID:35358905DOI:10.1016/j.hrtlng.2022.03.014.
Background: Current guidelines suggest the use of isotonic saline (IS) infusion as the preferred resuscitation fluid in the management of diabetic ketoacidosis (DKA). However, balanced electrolyte solutions (BES) have been proposed as an alternative due to a lower propensity to cause hyperchloremic metabolic acidosis. Evidence regarding the use of BES in DKA remains limited. Objectives: To determine if the use of BES in fluid resuscitation leads to faster resolution of DKA compared to IS. Methods: The study involves a comprehensive search of literature from PubMed, Cochrane CENTRAL, Google Scholar, and Science Direct of clinical trials addressing the use of BES vs IS in fluid resuscitation in DKA. The time to resolution of DKA was examined as the primary endpoint. Pooled hazard ratios (HR) and Mean Difference (MD) in hours with their 95% confidence intervals (CI) were calculated using a random-effects model. Results: The literature search included 464 studies that were screened individually. A total of 9 studies were identified but 6 studies were excluded due to irrelevance in the outcome of interest and target population. The pooled hazard ratio HR significantly revealed 1.46 [1.10 to 1.94] (p = 0.009) with 12% heterogeneity while MD was -3.02 (95% CI -6.78-0.74; p = 0.12) with heterogeneity of 85%. Conclusion: Considering the evidence from pooled small randomized trials with moderate overall certainty of evidence, the use of BES in DKA was associated with faster rates of DKA resolution compared to IS.
Effects of Breathing Exercises in Patients With Chronic Obstructive Pulmonary Disease: Systematic Review and Meta-Analysis
Ann Rehabil Med 2019 Aug;43(4):509-523.PMID:31499605DOI:10.5535/arm.2019.43.4.509.
Objective: To update evidence on the effects of breathing exercises (BES) on ventilation, exercise capacity, dyspnea, and quality of life (QoL) in chronic obstructive pulmonary disease (COPD) patients. Methods: Randomized controlled trials investigating the effects of BES in COPD patients published through May 2018, were retrieved from five electronic databases (MEDLINE, CINAHL, Cochrane, Scopus, and ScienceDirect). Risk of bias and quality of evidence were assessed, using Cochrane Collaboration's tool, and the Grading of Recommendation Assessment, Development, and Evaluation (GRADE) approach, respectively. Results: Nineteen studies (n=745), were included. Quality of evidence, was low to moderate. When compared to the control groups, respiratory rate significantly (p≤0.001) improved in the pursed-lip breathing (PLB), ventilatory feedback (VF) plus exercise, diaphragmatic breathing exercise (DBE), and combined BES. Additionally, PLB significantly improved tidal volume (p<0.001), inspiratory time (p=0.007), and total respiratory time (p<0.001). VF plus exercise significantly improved inspiratory capacity (p<0.001), and singing significantly improved the physical component of QoL, than did the control groups (p<0.001). All BES did not significantly improve dyspnea, compared to the controls (p>0.05). Conclusion: PLB, VF plus exercise, DBE, combined BES, and singing could be used to improve ventilation and QoL. Based on low to moderate quality of evidence, use of these BES to improve ventilation and QoL in COPD patients is conditional (Registration No. CRD42018102995).