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oil drilling techniques

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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oil drilling techniques
Implementation of Analytical Quality by Design Concepts at ...
Implementation of Analytical Quality by Design Concepts at ...

– More than one technique may satisfy ATP ,requirements, ... –,Screening, DoEs – Evaluation of method performance across a range ... ,RSD, (% ) ATP Max s 0.0 1.4 2.8 4.2 5.6 7.0 8.4 9.8 ,RSD, (% ) ATP Max s Verify MODR & Establish Control Strategy Method Evaluation and Verification Strategy .

Development and Validation of a Normal Phase Chiral HPLC ...
Development and Validation of a Normal Phase Chiral HPLC ...

The enantiomer purity value was calculated for each preparation. The average enantiomer purity was 99.6% and %,RSD, = 0.0% (n = 6) thus met the criteria of %,RSD, ≤2%. These results demonstrate that the method is precise for determination enantiomer purity of the ,API, samples. Discussion Column and mobile phase ,screening

Direct Detection of a Sulfonate Ester Genotoxic Impurity ...
Direct Detection of a Sulfonate Ester Genotoxic Impurity ...

A direct, ambient ionization method has been developed using ,atmospheric pressure thermal desorption–extractive electrospray–mass spectrometry, (AP/TD-EESI-MS) for the detection of the genotoxic impurity (GTI) methyl p-toluenesulfonate (MTS) in a surrogate pharmaceutical matrix. A custom-made thermal desorption probe was used to the desorb and vaporize MTS from the solid …

Further Validation of a Rapid Screening Semiquantitative ...
Further Validation of a Rapid Screening Semiquantitative ...

The results of the SQ-TLC estimation of quantities of ,active pharmaceutical ingredients, in the antimalarial dosage forms analysed in this study were largely confirmed by HPLC quantification. The study has further validated the SQ-TLC technique as a rapid ,screening, tool that can be adopted for use in resource-constrained communities to reliably detect substandard antimalarial medicines.

1-4 Assessing specs - API.ppt | Verification And ...
1-4 Assessing specs - API.ppt | Verification And ...

Polymorphism should be investigated. If no data is found in a literature search, the applicant should perform ,screening, studies. If polymorphism is a factor, a test is required in specs. PSD limits (d10, d50, d90) are required in the ,API, specs, based on the results of the lot used in biostudies. 16 | Lynda Paleshnuik | January 2012

Analytical Method Development and Validation For ...
Analytical Method Development and Validation For ...

The values of % ,RSD, are less than 2% indicating accuracy and precision of the method. The percentage recovery varies from 98-102% of Carbidopa and Olanzapine. LOD and LOQ were found to be within limit.The results obtained on the validation parameters met ICH and USP ,requirements, .it inferred the method found to be simple, accurate, precise and linear.

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