In brief, 10 g of soil was mixed with 10 mL of deionised water and 10 mL of acetonitrile, shaken end-overend for 30 min, mixed with a BEKOlut [R] Citrate-Kit-01 (containing 4 g of MgS[O.sub.4], 1 g of NaCl, 1 g of Na-citrate and 0.5 g of disodium citrate sesquihydrate
) and thoroughly mixed for 30 s using a Vortex mixer.
The Eshmuno CP-FT resin, a first-of-its kind CEX chromatography resin for the flow-through removal of aggregates from mAb therapeutics; two modified amino acids to simplify feeding and reduce total volume in cell culture: Phospho-L-Tyrosine Disodium Salt EMPROVE EXPERT and LCysteine S-Sulfate Sodium Sesquihydrate
Another group of researchers used a combination of salts (anhydrous MgS[O.sub.4], NaCl, sodium citrate, and sodium citrate dibasic sesquihydrate
) to cleanup cow, goat, and buffalo milk samples for the analysis of steroid hormones, using UPLC-TOF-MS for their determination ; application of this method to several Chinese milk samples revealed the presence of high levels of progesterone.
A mixture of salts composed of 1 g sodium chloride, 1 g disodium hydrogen citrate sesquihydrate
, 0.5 g trisodium citrate dehydrate, and 4 g magnesium sulphate anhydrous (all from M&B Chemicals, New Delhi, India) were added to the mixture and vortexed for 3 mins for extraction with separation.
Kits SampliQ QuEChERS (kindly supplied by Agilent Technologies Inc., Wilmington, DE, USA) consisted on extraction tubes (4 g MgS[O.sub.4], 1 g NaCl, 1 g sodium citrate, 0.5 g disodium citrate sesquihydrate
) and dispersive tubes (150 mg C18, 150 mg primary secondary amine (PSA) and 900 mg MgS[O.sub.4]).
Pantoprazole sodium sesquihydrate
and etodolac both are European Pharmacopoeia (EP) Reference Standards (ETD CRS batch number 1 and PTZ; CRS batch number 1), were purchased from Sigma-Aldrich Co.
Immediately after vortexing, pre-packaged QuEChERS European EN 15662 method formulation extraction salts containing 4 g MgSO4, 1 g NaCl, 1 g trisodium citrate dehydrate, and 0.5 g disodium hydrogen citrate sesquihydrate
(Restek) were added to each centrifuge tube.
Combination product of PAN and ITH (Label claim: Pantoprazole 40 mg, as pantoprazole sodium sesquihydrate
, and benazepril hydrochloride 150 mg), Itopan and Pantop-IT tablets (Alkem and Unichem Laboratories Ltd.) were purchased from the market.
According to Pfizer, the Teva and Sandoz products contain significant amounts of azithromycin sesquihydrate
rather than the azithromycin monohydrate stated on their labels.
Thus, the following procedure was firstly tested: 10 mL of wine, placed into 50-mL PTFE centrifuge tubes, 4 mL of acetonitrile, 1 g of sodium citrate tribasic dehydrate, 500 mg sodium citrate dibasic sesquihydrate
, 1 g of sodium chloride, and 4 g of anhydrous magnesium sulphate were added.