TQ 1621

Triple Quadrupole Mass Spectrometer

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Product Description

TQ 1621

BIKAI Triple Quadrupole LC-MS/MS · Models A and B

BIKAI TQ 1621 triple quadrupole LC‑MS/MS achieves femtogram‑level instrument detection limit, operating purely with nitrogen gas without requiring argon gas cylinder. Equipped with a 180° curved collision cell with axial linear acceleration, it eliminates neutral particles from ion beam and restricts MRM crosstalk down to 0.01%, preserving excellent sensitivity even for complex real‑world sample matrices.

The complete system is delivered with integrated PSA nitrogen generator and oil‑free dry fore pump with 5‑year maintenance‑free service life. It removes hassle of argon supply contract, gas cylinder management and regular oil changes. The instrument is supplied as a fully functional working system out‑of‑the‑box.

Sensitivity specification	TQ 1621A	TQ 1621B
S/N, ESI+ MRM (1 pg reserpine, RMS)	≥1,500,000:1	≥2,000,000:1
IDL, ESI+ (10 fg reserpine, n≥8, 99%)	≤4.0 fg	≤2.0 fg
IDL, ESI− (10 fg chloramphenicol, n≥8, 99%)	≤6.0 fg	≤4.0 fg
Everything else	Identical — same ion source, analyser, collision cell, detector, vacuum system and software

Configuration	Spatial tandem triple quadrupole, circular gold-plated rods
Mass range	m/z 5 – 1250
Resolution	0.4 – 2.5 FWHM, adjustable across the full mass range
Mass stability / accuracy	≤0.1 amu per 24 h; ≤±0.1 amu
Crosstalk	≤0.01%
Dynamic range	6 orders of magnitude
MRM scan speed	≥500 MRM/s
Reproducibility	Peak area RSD below 1.5%, RT RSD below 0.25% (5 pg tacrolimus, n≥8)
Collision cell	Q2, 180° curved linear acceleration; high-purity N₂, no argon required
Detector	Discrete-dynode electron multiplier
Fore pump	Oil-free dry pump ≥90 m³/h, five years maintenance-free
Dimensions and weight	800 × 852 × 590 mm; 208 kg

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