Puxi

Puxi (谱析, also styled PUXI) is a China-based commercial supplier of analytical reference materials and laboratory consumables. Its official website, www.puxi.com.cn, presents itself as a "标准物质中心" (reference materials center) and organizes a very broad catalogue spanning national standard materials (国家标准物质), analytical standards and pharmacopoeial reference standards (分析标准品 | 药典对照品), imported reference standards (进口标准品), metallurgical certified reference samples (冶金类标准样品), biochemical reagents (生化试剂), standard microbial strains (标准菌株), research cells (科研细胞), and microbiological detection media (微生物检测). The company's core offering is certified reference materials and standards used for analytical quality control. Its national-standard-materials section is subdivided by matrix and industry, including steel (钢铁), non-ferrous metals (有色金属), building materials (建材), nuclear and radioactive materials (核材料与放射性), polymer materials (高分子材料), chemicals (化工), geology and minerals (地质矿产), environmental chemistry (环境化学), clinical chemistry and pharmaceuticals (临床化学与药品), food (食品), engineering-technical properties (工程技术特性), physical and chemical properties (物理与化学特性), and coal and petroleum (煤炭石油). Alongside Chinese national standards, Puxi distributes pharmacopoeial reference standards aligned with the United States Pharmacopeia (USP), European Pharmacopoeia (EP), British Pharmacopoeia (BP), Japanese Pharmacopoeia (JP), and Chinese Pharmacopoeia (CP), and it markets its own "谱析" pharmacopoeia-supporting testing line. It also acts as a reseller of imported reference standards from a long list of international brands, including Supelco, NIST, NU-CHEK, Witega, DR.E, Accustandard, LGC, CER, Fermentek, TRC, NSI, Chemservice, Wellington, NIBSC, O2SI, CATO, FLUKA, VHG, IV, Reagecon, CONOSTAN, and CANNON. In metallurgical reference samples, Puxi lists domestic categories (steel, alloys, raw and auxiliary materials, geology and minerals, non-ferrous, mechanical) and imported samples from MBH (UK), SUS (Germany), IARM (USA), BS (USA), BAM (Germany), and ALCOA (USA). Its biochemical reagent range covers general, primary, analytical, chromatographic, high-purity, and indicator reagents, pharmaceutical intermediates, pharmaceutical excipients, electronic chemicals, staining solutions, culture and separation media, antibiotics, carbohydrates, plant and animal hormones, amino acids and proteins, inhibitors, derivatives, and lab consumables, plus imported reagents from MERCK, Afla, SIGMA, TCI, and Honeywell. Puxi also supplies standard microbial strains (lyophilized powder, second- and fourth-generation slants, and industrial, agricultural, forestry, medical, pharmaceutical, veterinary, and marine microbial strains), research cells (stem cells, transformed cells, drug-resistant cells, tumor cells, primary cells, tracer cells, genomic DNA, and biological quality-control materials), and microbiological detection products (control media, chromogenic media, powder media, liquid media, imported media, and cell-specific media). The website states that online ordering is not currently supported; customers are directed to an online consultation channel or a national service hotline (400-808-7372), and the company also lists a Beijing landline (010-53672232) and sales and complaint email addresses. Puxi offers product customization (产品定制) and publishes news and technical literature sections. The company appears to be a privately held Chinese trading and private-label supplier rather than a listed manufacturer; no founding year, founder, or parent-company information is provided in the available evidence.

The available evidence does not document Puxi's founding date, founders, or corporate history. What can be established from its official website is the shape of its current business: it operates as a Chinese reference-materials center (标准物质中心) under the PUXI brand at www.puxi.com.cn, selling certified reference materials, standards, reagents, strains, cells, and lab consumables. The catalogue shows a company built around breadth of sourcing rather than a single product line. Its national-standard-materials range is organized by industry and matrix — steel, non-ferrous metals, building materials, nuclear and radioactive materials, polymers, chemicals, geology and minerals, environmental chemistry, clinical chemistry and pharmaceuticals, food, engineering-technical properties, physical and chemical properties, and coal and petroleum — reflecting the many sectors in China that require traceable certified standards for testing and quality control. A second pillar is pharmacopoeial and analytical standards. Puxi lists reference standards corresponding to the United States Pharmacopeia, European Pharmacopoeia, British Pharmacopoeia, Japanese Pharmacopoeia, and Chinese Pharmacopoeia, and markets its own Puxi pharmacopoeia-supporting testing products. This positions the company in the pharmaceutical quality-control supply chain. A third pillar is distribution of imported reference standards and reagents. The website names a long roster of international suppliers — Supelco, NIST, NU-CHEK, Witega, DR.E, Accustandard, LGC, CER, Fermentek, TRC, NSI, Chemservice, Wellington, NIBSC, O2SI, CATO, FLUKA, VHG, IV, Reagecon, CONOSTAN, and CANNON for standards; MBH, SUS, IARM, BS, BAM, and ALCOA for metallurgical samples; and MERCK, Afla, SIGMA, TCI, and Honeywell for reagents — indicating an import-and-resell business alongside its own-brand products. Beyond standards and reagents, Puxi has extended into biological materials: standard microbial strains (lyophilized powder, second- and fourth-generation slants, and strains for industrial, agricultural, forestry, medical, pharmaceutical, veterinary, and marine use), research cells (stem, transformed, drug-resistant, tumor, primary, and tracer cells, genomic DNA, and biological quality-control materials), and microbiological detection media (control, chromogenic, powder, liquid, imported, and cell-specific media). The company also advertises product customization (产品定制) and publishes news and technical literature, and it directs customers to a national hotline and online consultation because online ordering is not currently supported. No listing status, ownership, or founding details appear in the evidence, so the corporate history remains undocumented here.

A one-stop Chinese reference-materials and lab-consumables supplier combining domestic national standards, pharmacopoeial standards, imported international brands, and private-label products, with custom synthesis and technical support.

• National standard materials (国家标准物质)

  Certified reference materials organized by industry and matrix, including steel, non-ferrous metals, building materials, nuclear and radioactive materials, polymers, chemicals, geology and minerals, environmental chemistry, clinical chemistry and pharmaceuticals, food, engineering-technical properties, physical and chemical properties, and coal and petroleum.

• Pharmacopoeial reference standards

  Reference standards aligned with USP, EP, BP, JP, and CP, plus Puxi's own pharmacopoeia-supporting testing line.

• Imported reference standards

  Distribution of international reference-standard brands including Supelco, NIST, NU-CHEK, Witega, DR.E, Accustandard, LGC, CER, Fermentek, TRC, NSI, Chemservice, Wellington, NIBSC, O2SI, CATO, FLUKA, VHG, IV, Reagecon, CONOSTAN, and CANNON.

• Metallurgical certified reference samples

  Domestic categories (steel, alloys, raw and auxiliary materials, geology and minerals, non-ferrous, mechanical) and imported samples from MBH, SUS, IARM, BS, BAM, and ALCOA.

• Biochemical reagents

  General, primary, analytical, chromatographic, high-purity, and indicator reagents; pharmaceutical intermediates; pharmaceutical excipients; electronic chemicals; staining solutions; culture and separation media; antibiotics; carbohydrates; plant and animal hormones; amino acids and proteins; inhibitors; derivatives; lab consumables; and imported reagents from MERCK, Afla, SIGMA, TCI, and Honeywell.

• Standard microbial strains

  Lyophilized powder, second- and fourth-generation slants, and industrial, agricultural, forestry, medical, pharmaceutical, veterinary, and marine microbial strains.

• Research cells

  Stem cells, transformed cells, drug-resistant cells, tumor cells, primary cells, tracer cells, genomic DNA, and biological quality-control materials.

• Microbiological detection media

  Control media, chromogenic media, powder media, liquid media, imported media, and cell-specific media.

1. 1谱析_标准物质中心_标准物质_标准品_标准溶液_质控样品_试液puxi.com.cn
2. 2产品目录 - 谱析_标准物质中心_标准物质_标准品_标准溶液_质控样品_试液puxi.com.cn
3. 3国家标准物质 - 谱析_标准物质中心_标准物质_标准品_标准溶液_质控样品_试液puxi.com.cn
4. 4钢铁 - 谱析_标准物质中心_标准物质_标准品_标准溶液_质控样品_试液puxi.com.cn